summary refs log tree commit diff homepage
path: root/2017
diff options
context:
space:
mode:
authorJune McEnroe <programble@gmail.com>2017-12-15 22:24:19 -0500
committerJune McEnroe <programble@gmail.com>2017-12-15 22:24:19 -0500
commit835bec231eee5f9149dc763ca18b0483d2ef7f8c (patch)
tree343f54ae93b8d53fe1efb108ce3210a7ce74941b /2017
parentDay 11, part 2 (diff)
downloadaoc-835bec231eee5f9149dc763ca18b0483d2ef7f8c.tar.gz
aoc-835bec231eee5f9149dc763ca18b0483d2ef7f8c.zip
Day 12
Diffstat (limited to '2017')
-rw-r--r--2017/input/day12.txt2000
-rw-r--r--2017/src/bin/day12.rs53
2 files changed, 2053 insertions, 0 deletions
diff --git a/2017/input/day12.txt b/2017/input/day12.txt
new file mode 100644
index 0000000..c7d421c
--- /dev/null
+++ b/2017/input/day12.txt
@@ -0,0 +1,2000 @@
+0 <-> 454, 528, 621, 1023, 1199
+1 <-> 1335, 1563, 1627, 1679
+2 <-> 353, 689
+3 <-> 3, 1171
+4 <-> 1247
+5 <-> 758, 928, 1260
+6 <-> 1010
+7 <-> 570
+8 <-> 710, 1610
+9 <-> 9
+10 <-> 10, 1822
+11 <-> 473
+12 <-> 255, 1355, 1999
+13 <-> 13, 1026
+14 <-> 113
+15 <-> 1954
+16 <-> 679, 918
+17 <-> 1101, 1637
+18 <-> 574, 1037
+19 <-> 481
+20 <-> 22, 815, 963, 1031
+21 <-> 1427
+22 <-> 20, 316, 802
+23 <-> 1328, 1447, 1708
+24 <-> 446, 1677
+25 <-> 25, 217
+26 <-> 184, 1138
+27 <-> 142
+28 <-> 1340
+29 <-> 954, 1174
+30 <-> 1185
+31 <-> 112, 1111
+32 <-> 1851
+33 <-> 662
+34 <-> 848
+35 <-> 315, 1983
+36 <-> 239
+37 <-> 422, 871, 1903
+38 <-> 1450, 1497
+39 <-> 923, 1652
+40 <-> 201, 434
+41 <-> 1878
+42 <-> 192, 1233
+43 <-> 1457
+44 <-> 499, 961
+45 <-> 1056
+46 <-> 302
+47 <-> 100, 1921
+48 <-> 1532
+49 <-> 728, 1028, 1201, 1301
+50 <-> 1662
+51 <-> 1186, 1773
+52 <-> 228, 1168, 1873
+53 <-> 413, 1111
+54 <-> 956
+55 <-> 477
+56 <-> 98
+57 <-> 1849, 1960
+58 <-> 440
+59 <-> 1115, 1389
+60 <-> 358, 499, 1392, 1582
+61 <-> 1704
+62 <-> 425
+63 <-> 1562, 1593
+64 <-> 916
+65 <-> 1842, 1951
+66 <-> 1991
+67 <-> 1026
+68 <-> 711
+69 <-> 854
+70 <-> 114, 1591
+71 <-> 1423
+72 <-> 1403
+73 <-> 170
+74 <-> 508, 831
+75 <-> 231, 1070, 1384, 1615
+76 <-> 751
+77 <-> 1190, 1421
+78 <-> 78, 1593
+79 <-> 221, 742, 1165
+80 <-> 1517
+81 <-> 1154
+82 <-> 310, 1027, 1358
+83 <-> 83, 1554
+84 <-> 743, 1208
+85 <-> 504, 1723
+86 <-> 1630
+87 <-> 919
+88 <-> 794
+89 <-> 1334
+90 <-> 1997
+91 <-> 494
+92 <-> 1210
+93 <-> 1619
+94 <-> 324, 1183, 1876
+95 <-> 300
+96 <-> 127, 1849
+97 <-> 733
+98 <-> 56, 534
+99 <-> 1028
+100 <-> 47, 402
+101 <-> 1053
+102 <-> 201, 498, 1016
+103 <-> 103, 1412
+104 <-> 105
+105 <-> 104, 608, 681
+106 <-> 106, 1605
+107 <-> 468, 1798
+108 <-> 1810
+109 <-> 789, 1300
+110 <-> 348, 550
+111 <-> 111
+112 <-> 31
+113 <-> 14, 136
+114 <-> 70, 132, 183, 847
+115 <-> 1086, 1409
+116 <-> 1220
+117 <-> 1047, 1886
+118 <-> 729
+119 <-> 119
+120 <-> 198
+121 <-> 1020, 1547
+122 <-> 891, 1241
+123 <-> 842, 866
+124 <-> 124, 1676
+125 <-> 1959
+126 <-> 895
+127 <-> 96
+128 <-> 664, 1170
+129 <-> 392, 1222
+130 <-> 1483, 1744
+131 <-> 1696
+132 <-> 114
+133 <-> 192
+134 <-> 134
+135 <-> 1696
+136 <-> 113, 803, 1064
+137 <-> 1738
+138 <-> 1486
+139 <-> 1811
+140 <-> 663, 1355, 1832
+141 <-> 226, 803
+142 <-> 27, 417
+143 <-> 486, 1441
+144 <-> 768, 850
+145 <-> 180, 669, 1935
+146 <-> 1242
+147 <-> 345, 1782
+148 <-> 1295, 1710
+149 <-> 1349
+150 <-> 697
+151 <-> 834
+152 <-> 152, 365
+153 <-> 654, 720
+154 <-> 1396, 1538
+155 <-> 804, 1891
+156 <-> 653, 1679
+157 <-> 302, 1108
+158 <-> 415, 680, 1668
+159 <-> 979, 1116, 1449
+160 <-> 463, 1627, 1769
+161 <-> 161, 232, 446, 874
+162 <-> 162, 527
+163 <-> 1760
+164 <-> 259, 750
+165 <-> 211, 945, 1022, 1069, 1071
+166 <-> 293
+167 <-> 178, 522
+168 <-> 301, 408, 622
+169 <-> 466, 1485, 1848
+170 <-> 73, 1028, 1761
+171 <-> 525, 755, 1219
+172 <-> 313, 476, 1383
+173 <-> 1629
+174 <-> 1795, 1977
+175 <-> 553, 1001
+176 <-> 1330
+177 <-> 375, 1013
+178 <-> 167
+179 <-> 1091, 1295
+180 <-> 145, 979, 1151
+181 <-> 803, 1107
+182 <-> 805, 872, 1366, 1894
+183 <-> 114, 685, 1252, 1508
+184 <-> 26
+185 <-> 402
+186 <-> 1748
+187 <-> 744, 971
+188 <-> 504
+189 <-> 814
+190 <-> 948
+191 <-> 506, 714
+192 <-> 42, 133, 854, 1152, 1250
+193 <-> 193
+194 <-> 1960
+195 <-> 382, 1551
+196 <-> 1759
+197 <-> 197
+198 <-> 120, 1070
+199 <-> 659, 1161
+200 <-> 875, 1572, 1819
+201 <-> 40, 102, 898, 1307
+202 <-> 436
+203 <-> 418, 771
+204 <-> 1114, 1224
+205 <-> 1011, 1979
+206 <-> 206, 882
+207 <-> 238
+208 <-> 1681
+209 <-> 1406
+210 <-> 1376
+211 <-> 165, 1153, 1916
+212 <-> 677
+213 <-> 915
+214 <-> 1280
+215 <-> 533
+216 <-> 626, 731
+217 <-> 25, 325
+218 <-> 1338
+219 <-> 596, 779
+220 <-> 339
+221 <-> 79, 620
+222 <-> 775, 1144
+223 <-> 439
+224 <-> 1825
+225 <-> 225
+226 <-> 141, 311
+227 <-> 1335
+228 <-> 52, 1861
+229 <-> 578, 727, 1085
+230 <-> 1036
+231 <-> 75, 766, 1386
+232 <-> 161
+233 <-> 953
+234 <-> 891
+235 <-> 1067
+236 <-> 419
+237 <-> 237
+238 <-> 207, 1687
+239 <-> 36, 1357
+240 <-> 1602
+241 <-> 241, 511, 960
+242 <-> 888, 1498, 1556
+243 <-> 1243, 1418, 1717
+244 <-> 364, 753
+245 <-> 643, 807
+246 <-> 1653
+247 <-> 1446, 1902
+248 <-> 1164, 1743
+249 <-> 645, 669
+250 <-> 556
+251 <-> 390, 1973
+252 <-> 956
+253 <-> 1149, 1574
+254 <-> 560, 1454, 1826
+255 <-> 12, 1214
+256 <-> 314, 820, 1087
+257 <-> 700, 1540, 1986
+258 <-> 258
+259 <-> 164
+260 <-> 1274
+261 <-> 1385
+262 <-> 765
+263 <-> 1231, 1509
+264 <-> 586
+265 <-> 586, 748, 1186
+266 <-> 1046, 1418
+267 <-> 877, 1572
+268 <-> 1370, 1688, 1980
+269 <-> 782, 1610
+270 <-> 789, 1052, 1102
+271 <-> 1787
+272 <-> 1076
+273 <-> 303, 1549
+274 <-> 353
+275 <-> 360
+276 <-> 717
+277 <-> 1955
+278 <-> 876, 890, 1311, 1920
+279 <-> 279, 515
+280 <-> 292, 1067, 1345
+281 <-> 1525, 1728
+282 <-> 1211
+283 <-> 1053
+284 <-> 312, 1647
+285 <-> 1534
+286 <-> 1738
+287 <-> 517, 1402
+288 <-> 514
+289 <-> 462, 915, 1401
+290 <-> 700, 1428, 1834
+291 <-> 1115, 1473
+292 <-> 280, 1185
+293 <-> 166, 564
+294 <-> 320, 1906
+295 <-> 850, 1276
+296 <-> 1843
+297 <-> 544
+298 <-> 1208, 1399
+299 <-> 577
+300 <-> 95, 421, 794
+301 <-> 168, 933
+302 <-> 46, 157, 1844
+303 <-> 273
+304 <-> 496
+305 <-> 1493
+306 <-> 736, 1316, 1622
+307 <-> 1495
+308 <-> 1286, 1357
+309 <-> 309, 1764
+310 <-> 82
+311 <-> 226
+312 <-> 284, 514, 845, 1476
+313 <-> 172, 361, 1663
+314 <-> 256, 809
+315 <-> 35, 1043
+316 <-> 22
+317 <-> 1418, 1643
+318 <-> 404, 1032, 1452, 1534
+319 <-> 841
+320 <-> 294, 949
+321 <-> 699, 925, 1274, 1700
+322 <-> 458, 1124, 1549
+323 <-> 323
+324 <-> 94, 1425, 1655
+325 <-> 217
+326 <-> 843, 1994
+327 <-> 327, 1556, 1952
+328 <-> 405, 1081
+329 <-> 329, 388
+330 <-> 369, 1084, 1846
+331 <-> 1700
+332 <-> 1772, 1973
+333 <-> 695, 1639
+334 <-> 703, 932
+335 <-> 335
+336 <-> 668, 1005
+337 <-> 702, 743
+338 <-> 517
+339 <-> 220, 339, 716, 773, 1132, 1924
+340 <-> 362, 1841
+341 <-> 885, 1034, 1325
+342 <-> 360, 1446
+343 <-> 343
+344 <-> 1017
+345 <-> 147, 1458
+346 <-> 1089
+347 <-> 925, 1774
+348 <-> 110, 1282, 1884
+349 <-> 551
+350 <-> 1630
+351 <-> 714
+352 <-> 619, 1926
+353 <-> 2, 274, 1824
+354 <-> 1459, 1854
+355 <-> 355
+356 <-> 399, 1251, 1600
+357 <-> 466, 1818, 1825
+358 <-> 60, 358
+359 <-> 570
+360 <-> 275, 342, 1768
+361 <-> 313, 361, 1303
+362 <-> 340, 580, 747, 1433
+363 <-> 1678
+364 <-> 244, 494
+365 <-> 152
+366 <-> 874
+367 <-> 367, 735, 1139
+368 <-> 459
+369 <-> 330
+370 <-> 881
+371 <-> 1133, 1213, 1438
+372 <-> 1290, 1963
+373 <-> 846, 1829
+374 <-> 780, 996
+375 <-> 177, 1126, 1223
+376 <-> 474, 1467
+377 <-> 1485, 1544
+378 <-> 1105, 1815, 1895
+379 <-> 507, 1936
+380 <-> 529, 806, 1654
+381 <-> 1306, 1606
+382 <-> 195, 676, 736, 1268
+383 <-> 383, 624, 1379
+384 <-> 384, 856
+385 <-> 1463
+386 <-> 495, 629, 1578
+387 <-> 836, 1670
+388 <-> 329
+389 <-> 488, 1477, 1866
+390 <-> 251
+391 <-> 391
+392 <-> 129, 828, 1877
+393 <-> 1436
+394 <-> 1495
+395 <-> 776, 879
+396 <-> 793, 1298
+397 <-> 523, 1192, 1693, 1712
+398 <-> 398
+399 <-> 356, 399, 1499
+400 <-> 400, 1104
+401 <-> 1039
+402 <-> 100, 185, 1600
+403 <-> 706, 1550
+404 <-> 318, 1374, 1697
+405 <-> 328, 1511
+406 <-> 602, 905
+407 <-> 407, 1910
+408 <-> 168, 1120, 1584
+409 <-> 1945
+410 <-> 1763
+411 <-> 1915
+412 <-> 448, 1486
+413 <-> 53, 681
+414 <-> 414
+415 <-> 158
+416 <-> 848, 1051
+417 <-> 142, 1717
+418 <-> 203, 1226, 1537
+419 <-> 236, 1144
+420 <-> 1027, 1793
+421 <-> 300, 671, 705
+422 <-> 37
+423 <-> 1013, 1607
+424 <-> 424, 437, 1332
+425 <-> 62, 774
+426 <-> 426, 1359
+427 <-> 1373
+428 <-> 718
+429 <-> 429, 1940
+430 <-> 1410
+431 <-> 554, 1941
+432 <-> 1845
+433 <-> 718, 1630
+434 <-> 40, 1780
+435 <-> 650
+436 <-> 202, 1467, 1853
+437 <-> 424
+438 <-> 680, 1018, 1538
+439 <-> 223, 1042, 1397
+440 <-> 58, 1860
+441 <-> 1138
+442 <-> 640, 723, 1322
+443 <-> 492, 958, 1736
+444 <-> 444
+445 <-> 533, 1530
+446 <-> 24, 161, 1735, 1892, 1898
+447 <-> 1998
+448 <-> 412, 1266
+449 <-> 972, 1397
+450 <-> 732, 1147
+451 <-> 1339, 1435, 1729
+452 <-> 520
+453 <-> 1810
+454 <-> 0
+455 <-> 1677
+456 <-> 1915
+457 <-> 1024, 1790
+458 <-> 322
+459 <-> 368, 1181
+460 <-> 460
+461 <-> 1181
+462 <-> 289, 557, 1804
+463 <-> 160
+464 <-> 822, 1330
+465 <-> 658
+466 <-> 169, 357, 1248
+467 <-> 467, 1278
+468 <-> 107
+469 <-> 1480
+470 <-> 1503
+471 <-> 1376, 1717
+472 <-> 1835
+473 <-> 11, 597
+474 <-> 376, 687, 1478, 1730
+475 <-> 701, 866
+476 <-> 172
+477 <-> 55, 1985
+478 <-> 478
+479 <-> 843, 1333, 1555
+480 <-> 609, 712
+481 <-> 19, 591, 1141
+482 <-> 1698, 1883
+483 <-> 664
+484 <-> 1367, 1965
+485 <-> 534, 1276
+486 <-> 143, 1380, 1757
+487 <-> 487
+488 <-> 389
+489 <-> 572
+490 <-> 1053, 1465
+491 <-> 840, 1074
+492 <-> 443, 1728
+493 <-> 631
+494 <-> 91, 364
+495 <-> 386, 1273, 1726, 1838
+496 <-> 304, 772
+497 <-> 572
+498 <-> 102
+499 <-> 44, 60
+500 <-> 1078
+501 <-> 642
+502 <-> 561, 587, 686, 816, 1905
+503 <-> 956, 1614
+504 <-> 85, 188, 518, 790, 1891
+505 <-> 1444
+506 <-> 191
+507 <-> 379, 1892
+508 <-> 74, 1522
+509 <-> 1429, 1863
+510 <-> 510
+511 <-> 241, 1797
+512 <-> 1487
+513 <-> 1280, 1997
+514 <-> 288, 312, 1699
+515 <-> 279, 1532
+516 <-> 516, 1714
+517 <-> 287, 338, 1364
+518 <-> 504, 1852
+519 <-> 762
+520 <-> 452, 666, 1139
+521 <-> 862, 1492
+522 <-> 167, 616, 1644, 1956
+523 <-> 397, 568
+524 <-> 1038, 1896
+525 <-> 171, 1239, 1847
+526 <-> 1272, 1907
+527 <-> 162, 1966
+528 <-> 0, 1623
+529 <-> 380
+530 <-> 1479
+531 <-> 1529
+532 <-> 1085, 1939
+533 <-> 215, 445, 1422, 1597
+534 <-> 98, 485, 1337, 1960
+535 <-> 880
+536 <-> 1518
+537 <-> 1009, 1274
+538 <-> 1535, 1620
+539 <-> 1971
+540 <-> 540
+541 <-> 565
+542 <-> 1679
+543 <-> 1374
+544 <-> 297, 740
+545 <-> 1461
+546 <-> 546
+547 <-> 547, 1019
+548 <-> 1436
+549 <-> 1589, 1980
+550 <-> 110, 573
+551 <-> 349, 1555
+552 <-> 1725
+553 <-> 175, 553, 1410
+554 <-> 431, 776, 897
+555 <-> 1859
+556 <-> 250, 875
+557 <-> 462, 998, 1124
+558 <-> 1409
+559 <-> 912
+560 <-> 254
+561 <-> 502, 561
+562 <-> 1679
+563 <-> 1299
+564 <-> 293, 1259
+565 <-> 541, 1312, 1441, 1913
+566 <-> 1907
+567 <-> 1159
+568 <-> 523
+569 <-> 1873
+570 <-> 7, 359, 869
+571 <-> 1752, 1779
+572 <-> 489, 497, 811, 953
+573 <-> 550
+574 <-> 18, 1238
+575 <-> 1771
+576 <-> 1442, 1630
+577 <-> 299, 1453
+578 <-> 229, 1142, 1868
+579 <-> 1878, 1977
+580 <-> 362
+581 <-> 1811
+582 <-> 1675
+583 <-> 765, 1632
+584 <-> 983
+585 <-> 1201
+586 <-> 264, 265
+587 <-> 502, 1680, 1968
+588 <-> 616
+589 <-> 1354, 1575
+590 <-> 1106
+591 <-> 481, 1179
+592 <-> 1946
+593 <-> 733, 1670
+594 <-> 1129, 1271
+595 <-> 1280
+596 <-> 219, 1168
+597 <-> 473, 876
+598 <-> 1089
+599 <-> 1334
+600 <-> 1308
+601 <-> 604, 870, 1817, 1946
+602 <-> 406, 1369
+603 <-> 1442
+604 <-> 601
+605 <-> 862
+606 <-> 1355
+607 <-> 1157
+608 <-> 105
+609 <-> 480, 756
+610 <-> 1040, 1657
+611 <-> 987, 1259
+612 <-> 612, 1672
+613 <-> 613, 1631
+614 <-> 1602, 1795
+615 <-> 646, 894
+616 <-> 522, 588, 850
+617 <-> 617, 1254
+618 <-> 1352
+619 <-> 352, 1855
+620 <-> 221, 620
+621 <-> 0
+622 <-> 168, 1373
+623 <-> 700
+624 <-> 383
+625 <-> 1321, 1343
+626 <-> 216
+627 <-> 1034
+628 <-> 1271
+629 <-> 386, 1172, 1973
+630 <-> 1544, 1954
+631 <-> 493, 1334
+632 <-> 1375, 1491
+633 <-> 1456
+634 <-> 1982
+635 <-> 924, 1054, 1617
+636 <-> 825
+637 <-> 1653
+638 <-> 1098, 1321, 1404, 1790
+639 <-> 639
+640 <-> 442, 640, 1507
+641 <-> 1519
+642 <-> 501, 1401
+643 <-> 245
+644 <-> 714, 1348
+645 <-> 249, 1329
+646 <-> 615, 1733
+647 <-> 1912
+648 <-> 1598
+649 <-> 933
+650 <-> 435, 1895
+651 <-> 1537
+652 <-> 652, 1240, 1879
+653 <-> 156, 1920
+654 <-> 153, 1749
+655 <-> 1248
+656 <-> 700, 919, 1118, 1969
+657 <-> 657, 1851
+658 <-> 465, 1474
+659 <-> 199, 818, 920
+660 <-> 660
+661 <-> 745
+662 <-> 33, 1115, 1978
+663 <-> 140, 1726
+664 <-> 128, 483, 1780
+665 <-> 1520
+666 <-> 520
+667 <-> 806
+668 <-> 336, 934
+669 <-> 145, 249, 1846
+670 <-> 819, 1526, 1802
+671 <-> 421
+672 <-> 1870
+673 <-> 931, 1018, 1211
+674 <-> 1627
+675 <-> 675
+676 <-> 382, 819
+677 <-> 212, 1163
+678 <-> 733
+679 <-> 16, 1149, 1402, 1959
+680 <-> 158, 438, 886
+681 <-> 105, 413, 1385
+682 <-> 1309
+683 <-> 1539
+684 <-> 1034, 1520, 1801, 1927
+685 <-> 183
+686 <-> 502
+687 <-> 474
+688 <-> 786
+689 <-> 2, 1671
+690 <-> 1673, 1946
+691 <-> 1732
+692 <-> 1853
+693 <-> 1230
+694 <-> 694, 1823
+695 <-> 333
+696 <-> 1214
+697 <-> 150, 697
+698 <-> 1181
+699 <-> 321, 1292, 1480
+700 <-> 257, 290, 623, 656
+701 <-> 475, 1205
+702 <-> 337, 1597
+703 <-> 334
+704 <-> 912, 989, 1613
+705 <-> 421, 849, 1215, 1270
+706 <-> 403, 1648
+707 <-> 1396
+708 <-> 1081, 1687
+709 <-> 1237
+710 <-> 8, 826, 926, 1685
+711 <-> 68, 711
+712 <-> 480
+713 <-> 1438, 1461, 1824, 1996
+714 <-> 191, 351, 644
+715 <-> 1058, 1875
+716 <-> 339
+717 <-> 276, 983, 1582, 1888
+718 <-> 428, 433, 1227, 1239
+719 <-> 1339, 1341
+720 <-> 153, 1101, 1411
+721 <-> 754, 878, 1794
+722 <-> 1255, 1862
+723 <-> 442, 760, 896
+724 <-> 1033
+725 <-> 1115
+726 <-> 825, 1562
+727 <-> 229, 994
+728 <-> 49, 752, 947, 1589
+729 <-> 118, 759, 985, 1070, 1760
+730 <-> 1072
+731 <-> 216, 1755
+732 <-> 450, 1264
+733 <-> 97, 593, 678, 1259
+734 <-> 1099, 1531, 1811
+735 <-> 367, 1586
+736 <-> 306, 382, 1625
+737 <-> 1886
+738 <-> 1991
+739 <-> 1684, 1827
+740 <-> 544, 1539, 1694, 1737
+741 <-> 741
+742 <-> 79
+743 <-> 84, 337, 743
+744 <-> 187, 1992
+745 <-> 661, 1266, 1856
+746 <-> 1674
+747 <-> 362, 1383
+748 <-> 265, 1429
+749 <-> 1299
+750 <-> 164, 1216, 1336, 1469, 1734
+751 <-> 76, 1011
+752 <-> 728
+753 <-> 244, 803
+754 <-> 721, 1890
+755 <-> 171
+756 <-> 609, 1470, 1934
+757 <-> 1098, 1885
+758 <-> 5
+759 <-> 729, 1092, 1363
+760 <-> 723, 946
+761 <-> 1321, 1704
+762 <-> 519, 1317, 1776
+763 <-> 1693
+764 <-> 1093
+765 <-> 262, 583, 1250, 1545, 1642
+766 <-> 231
+767 <-> 835, 1395
+768 <-> 144
+769 <-> 984
+770 <-> 1232
+771 <-> 203
+772 <-> 496, 1437
+773 <-> 339
+774 <-> 425, 774, 1015
+775 <-> 222
+776 <-> 395, 554
+777 <-> 1278
+778 <-> 778, 991, 1062
+779 <-> 219, 1993
+780 <-> 374
+781 <-> 917, 1716, 1929, 1962
+782 <-> 269
+783 <-> 1381
+784 <-> 1075, 1790, 1965
+785 <-> 914, 1504
+786 <-> 688, 1319, 1440, 1771, 1981
+787 <-> 1161, 1750
+788 <-> 1279, 1632
+789 <-> 109, 270, 853, 865, 1806, 1840
+790 <-> 504
+791 <-> 791
+792 <-> 1041
+793 <-> 396, 1562, 1827
+794 <-> 88, 300, 817
+795 <-> 956
+796 <-> 1323, 1816
+797 <-> 921, 1331
+798 <-> 1621
+799 <-> 1871
+800 <-> 800
+801 <-> 1608, 1823
+802 <-> 22, 1326
+803 <-> 136, 141, 181, 753, 1082, 1374
+804 <-> 155, 1252, 1487
+805 <-> 182
+806 <-> 380, 667, 1623
+807 <-> 245, 844, 1564, 1567, 1724
+808 <-> 1193
+809 <-> 314, 1033, 1333
+810 <-> 1643
+811 <-> 572
+812 <-> 812, 1681, 1799
+813 <-> 1726
+814 <-> 189, 1861, 1912
+815 <-> 20, 939
+816 <-> 502
+817 <-> 794
+818 <-> 659, 1488
+819 <-> 670, 676
+820 <-> 256
+821 <-> 821
+822 <-> 464, 997, 1338
+823 <-> 823
+824 <-> 1016
+825 <-> 636, 726, 1988
+826 <-> 710, 1060, 1576
+827 <-> 1027, 1214
+828 <-> 392
+829 <-> 829
+830 <-> 1504, 1532
+831 <-> 74
+832 <-> 1730
+833 <-> 944, 1778, 1980
+834 <-> 151, 862
+835 <-> 767, 1755
+836 <-> 387, 1202, 1256
+837 <-> 871, 1233
+838 <-> 1028, 1246
+839 <-> 1158, 1468
+840 <-> 491
+841 <-> 319, 841
+842 <-> 123, 1759
+843 <-> 326, 479
+844 <-> 807
+845 <-> 312
+846 <-> 373, 1541, 1550
+847 <-> 114, 1533, 1614
+848 <-> 34, 416, 1116, 1391
+849 <-> 705, 870
+850 <-> 144, 295, 616, 1466, 1746
+851 <-> 1169, 1329
+852 <-> 1796, 1912
+853 <-> 789
+854 <-> 69, 192
+855 <-> 1089
+856 <-> 384, 1007
+857 <-> 1720
+858 <-> 1338
+859 <-> 1338, 1822
+860 <-> 1028, 1334
+861 <-> 1093, 1457, 1552
+862 <-> 521, 605, 834, 1309, 1903
+863 <-> 1232, 1960
+864 <-> 1823
+865 <-> 789, 1299
+866 <-> 123, 475, 1543
+867 <-> 945, 1573
+868 <-> 1569
+869 <-> 570, 1035
+870 <-> 601, 849
+871 <-> 37, 837, 1786
+872 <-> 182, 979
+873 <-> 1146, 1220
+874 <-> 161, 366, 1439
+875 <-> 200, 556
+876 <-> 278, 597, 1148
+877 <-> 267
+878 <-> 721, 1678, 1709
+879 <-> 395
+880 <-> 535, 1459
+881 <-> 370, 1481, 1643
+882 <-> 206, 1374, 1970
+883 <-> 1948
+884 <-> 884
+885 <-> 341, 1664
+886 <-> 680, 1217, 1515
+887 <-> 887
+888 <-> 242
+889 <-> 1972
+890 <-> 278
+891 <-> 122, 234, 962, 1762
+892 <-> 1845
+893 <-> 1692
+894 <-> 615, 1365
+895 <-> 126, 1948
+896 <-> 723, 965, 1002
+897 <-> 554, 897
+898 <-> 201, 1767
+899 <-> 1127, 1723, 1929
+900 <-> 1100, 1956
+901 <-> 1099, 1919
+902 <-> 1428
+903 <-> 1416
+904 <-> 1062
+905 <-> 406, 1991
+906 <-> 1253
+907 <-> 1616
+908 <-> 1744
+909 <-> 1261, 1824
+910 <-> 1773
+911 <-> 1340
+912 <-> 559, 704, 1289, 1369
+913 <-> 1420
+914 <-> 785
+915 <-> 213, 289
+916 <-> 64, 1481
+917 <-> 781
+918 <-> 16, 1304
+919 <-> 87, 656
+920 <-> 659, 950
+921 <-> 797, 1755
+922 <-> 1274, 1635
+923 <-> 39
+924 <-> 635
+925 <-> 321, 347
+926 <-> 710, 926
+927 <-> 1393, 1666
+928 <-> 5, 1981
+929 <-> 1570
+930 <-> 1864
+931 <-> 673, 1245
+932 <-> 334, 1203, 1642
+933 <-> 301, 649, 1164
+934 <-> 668, 1047, 1540, 1887
+935 <-> 1617
+936 <-> 1187
+937 <-> 937, 1353
+938 <-> 949, 1913
+939 <-> 815
+940 <-> 1649
+941 <-> 941
+942 <-> 1125
+943 <-> 943, 1404
+944 <-> 833, 1112
+945 <-> 165, 867, 964
+946 <-> 760
+947 <-> 728, 1596
+948 <-> 190
+949 <-> 320, 938, 1931
+950 <-> 920, 1992
+951 <-> 1590
+952 <-> 1422
+953 <-> 233, 572, 1127
+954 <-> 29, 1074
+955 <-> 1672
+956 <-> 54, 252, 503, 795
+957 <-> 995
+958 <-> 443, 1275
+959 <-> 966
+960 <-> 241, 1297, 1641, 1839
+961 <-> 44, 1050
+962 <-> 891
+963 <-> 20, 1144, 1875
+964 <-> 945, 1623
+965 <-> 896, 1768
+966 <-> 959, 1394
+967 <-> 1155
+968 <-> 1154, 1609
+969 <-> 1652, 1738
+970 <-> 970
+971 <-> 187
+972 <-> 449, 1135, 1707
+973 <-> 1029
+974 <-> 1267
+975 <-> 1587, 1928
+976 <-> 1248
+977 <-> 977, 1932
+978 <-> 1906
+979 <-> 159, 180, 872, 1218, 1560
+980 <-> 1086, 1830
+981 <-> 1426, 1689
+982 <-> 1671
+983 <-> 584, 717, 1408
+984 <-> 769, 1121
+985 <-> 729, 1344
+986 <-> 1486
+987 <-> 611
+988 <-> 988, 1800
+989 <-> 704
+990 <-> 1398
+991 <-> 778
+992 <-> 992
+993 <-> 1537
+994 <-> 727
+995 <-> 957, 1909
+996 <-> 374, 1848
+997 <-> 822, 1159
+998 <-> 557, 1691
+999 <-> 1393
+1000 <-> 1083
+1001 <-> 175, 1528
+1002 <-> 896
+1003 <-> 1003
+1004 <-> 1828, 1846, 1859
+1005 <-> 336
+1006 <-> 1871
+1007 <-> 856, 1362
+1008 <-> 1256, 1514, 1835
+1009 <-> 537, 1646
+1010 <-> 6, 1232
+1011 <-> 205, 751, 1976
+1012 <-> 1964
+1013 <-> 177, 423
+1014 <-> 1123
+1015 <-> 774, 1944
+1016 <-> 102, 824, 1557, 1912
+1017 <-> 344, 1017, 1113, 1649
+1018 <-> 438, 673, 1962
+1019 <-> 547
+1020 <-> 121, 1020
+1021 <-> 1909
+1022 <-> 165
+1023 <-> 0, 1601
+1024 <-> 457
+1025 <-> 1372, 1699
+1026 <-> 13, 67
+1027 <-> 82, 420, 827, 1383, 1686
+1028 <-> 49, 99, 170, 838, 860, 1961
+1029 <-> 973, 1029
+1030 <-> 1174
+1031 <-> 20, 1496, 1766, 1951
+1032 <-> 318, 1108
+1033 <-> 724, 809, 1917
+1034 <-> 341, 627, 684, 1269
+1035 <-> 869, 1061
+1036 <-> 230, 1181, 1522
+1037 <-> 18, 1470
+1038 <-> 524, 1038, 1445, 1561
+1039 <-> 401, 1972
+1040 <-> 610
+1041 <-> 792, 1041, 1787
+1042 <-> 439, 1853
+1043 <-> 315
+1044 <-> 1549, 1570, 1957
+1045 <-> 1719
+1046 <-> 266
+1047 <-> 117, 934
+1048 <-> 1468
+1049 <-> 1078, 1568, 1755
+1050 <-> 961
+1051 <-> 416
+1052 <-> 270
+1053 <-> 101, 283, 490, 1490
+1054 <-> 635, 1231
+1055 <-> 1061, 1260
+1056 <-> 45, 1056
+1057 <-> 1945
+1058 <-> 715
+1059 <-> 1933
+1060 <-> 826
+1061 <-> 1035, 1055
+1062 <-> 778, 904
+1063 <-> 1496, 1502, 1666
+1064 <-> 136, 1943
+1065 <-> 1979
+1066 <-> 1171
+1067 <-> 235, 280, 1657
+1068 <-> 1068
+1069 <-> 165
+1070 <-> 75, 198, 729
+1071 <-> 165
+1072 <-> 730, 1224, 1456
+1073 <-> 1073
+1074 <-> 491, 954, 1979
+1075 <-> 784, 1739
+1076 <-> 272, 1617
+1077 <-> 1636
+1078 <-> 500, 1049, 1285
+1079 <-> 1770
+1080 <-> 1103, 1472
+1081 <-> 328, 708, 1803
+1082 <-> 803
+1083 <-> 1000, 1803
+1084 <-> 330
+1085 <-> 229, 532
+1086 <-> 115, 980, 1086
+1087 <-> 256, 1351, 1933
+1088 <-> 1088, 1872
+1089 <-> 346, 598, 855, 1840
+1090 <-> 1193
+1091 <-> 179
+1092 <-> 759
+1093 <-> 764, 861, 1406
+1094 <-> 1094
+1095 <-> 1128, 1398
+1096 <-> 1477
+1097 <-> 1673
+1098 <-> 638, 757, 1364
+1099 <-> 734, 901
+1100 <-> 900
+1101 <-> 17, 720
+1102 <-> 270
+1103 <-> 1080, 1103, 1394
+1104 <-> 400, 1720
+1105 <-> 378, 1515
+1106 <-> 590, 1782
+1107 <-> 181
+1108 <-> 157, 1032
+1109 <-> 1799
+1110 <-> 1251
+1111 <-> 31, 53, 1541
+1112 <-> 944
+1113 <-> 1017
+1114 <-> 204
+1115 <-> 59, 291, 662, 725, 1616, 1617
+1116 <-> 159, 848
+1117 <-> 1176
+1118 <-> 656
+1119 <-> 1461
+1120 <-> 408
+1121 <-> 984, 1436, 1518
+1122 <-> 1573, 1774
+1123 <-> 1014, 1606, 1678
+1124 <-> 322, 557
+1125 <-> 942, 1378, 1760
+1126 <-> 375, 1516, 1914
+1127 <-> 899, 953
+1128 <-> 1095, 1907
+1129 <-> 594, 1676
+1130 <-> 1774
+1131 <-> 1131, 1516
+1132 <-> 339, 1421
+1133 <-> 371
+1134 <-> 1227, 1669
+1135 <-> 972
+1136 <-> 1136, 1163
+1137 <-> 1654
+1138 <-> 26, 441, 1361, 1593
+1139 <-> 367, 520, 1140
+1140 <-> 1139
+1141 <-> 481, 1141
+1142 <-> 578
+1143 <-> 1980
+1144 <-> 222, 419, 963
+1145 <-> 1145
+1146 <-> 873, 1273
+1147 <-> 450, 1686
+1148 <-> 876, 1690
+1149 <-> 253, 679
+1150 <-> 1276
+1151 <-> 180
+1152 <-> 192, 1284
+1153 <-> 211, 1529
+1154 <-> 81, 968
+1155 <-> 967, 1205, 1954
+1156 <-> 1637
+1157 <-> 607, 1452
+1158 <-> 839
+1159 <-> 567, 997
+1160 <-> 1160, 1541
+1161 <-> 199, 787
+1162 <-> 1880
+1163 <-> 677, 1136
+1164 <-> 248, 933, 1667
+1165 <-> 79, 1313
+1166 <-> 1636
+1167 <-> 1810
+1168 <-> 52, 596, 1277
+1169 <-> 851
+1170 <-> 128, 1650
+1171 <-> 3, 1066
+1172 <-> 629
+1173 <-> 1537
+1174 <-> 29, 1030, 1175
+1175 <-> 1174
+1176 <-> 1117, 1385
+1177 <-> 1875
+1178 <-> 1887
+1179 <-> 591, 1191
+1180 <-> 1569, 1743
+1181 <-> 459, 461, 698, 1036
+1182 <-> 1652
+1183 <-> 94, 1724, 1734, 1974
+1184 <-> 1184
+1185 <-> 30, 292, 1308, 1625
+1186 <-> 51, 265, 1186, 1963, 1972
+1187 <-> 936, 1187
+1188 <-> 1494
+1189 <-> 1360, 1876
+1190 <-> 77
+1191 <-> 1179
+1192 <-> 397
+1193 <-> 808, 1090, 1619
+1194 <-> 1194
+1195 <-> 1195
+1196 <-> 1957
+1197 <-> 1263
+1198 <-> 1198
+1199 <-> 0
+1200 <-> 1200
+1201 <-> 49, 585, 1201, 1557, 1890
+1202 <-> 836
+1203 <-> 932
+1204 <-> 1911
+1205 <-> 701, 1155, 1350
+1206 <-> 1228, 1318, 1665
+1207 <-> 1373, 1741
+1208 <-> 84, 298
+1209 <-> 1485
+1210 <-> 92, 1626, 1775
+1211 <-> 282, 673
+1212 <-> 1807
+1213 <-> 371
+1214 <-> 255, 696, 827
+1215 <-> 705, 1378
+1216 <-> 750, 1538
+1217 <-> 886
+1218 <-> 979, 1523
+1219 <-> 171
+1220 <-> 116, 873
+1221 <-> 1553, 1827
+1222 <-> 129
+1223 <-> 375
+1224 <-> 204, 1072, 1660, 1757
+1225 <-> 1661, 1683, 1812
+1226 <-> 418
+1227 <-> 718, 1134
+1228 <-> 1206, 1490
+1229 <-> 1237
+1230 <-> 693, 1274, 1826
+1231 <-> 263, 1054, 1424
+1232 <-> 770, 863, 1010
+1233 <-> 42, 837
+1234 <-> 1342
+1235 <-> 1235
+1236 <-> 1805, 1881
+1237 <-> 709, 1229, 1390, 1589, 1590
+1238 <-> 574
+1239 <-> 525, 718
+1240 <-> 652
+1241 <-> 122
+1242 <-> 146, 1473
+1243 <-> 243
+1244 <-> 1244
+1245 <-> 931, 1282
+1246 <-> 838
+1247 <-> 4, 1662, 1679
+1248 <-> 466, 655, 976
+1249 <-> 1588
+1250 <-> 192, 765
+1251 <-> 356, 1110
+1252 <-> 183, 804
+1253 <-> 906, 1842
+1254 <-> 617
+1255 <-> 722, 1255
+1256 <-> 836, 1008
+1257 <-> 1437
+1258 <-> 1587
+1259 <-> 564, 611, 733
+1260 <-> 5, 1055
+1261 <-> 909
+1262 <-> 1912
+1263 <-> 1197, 1513
+1264 <-> 732, 1453
+1265 <-> 1864
+1266 <-> 448, 745, 1266
+1267 <-> 974, 1267, 1637, 1807
+1268 <-> 382
+1269 <-> 1034
+1270 <-> 705
+1271 <-> 594, 628
+1272 <-> 526
+1273 <-> 495, 1146
+1274 <-> 260, 321, 537, 922, 1230
+1275 <-> 958
+1276 <-> 295, 485, 1150
+1277 <-> 1168
+1278 <-> 467, 777
+1279 <-> 788
+1280 <-> 214, 513, 595, 1377, 1971
+1281 <-> 1658, 1812
+1282 <-> 348, 1245, 1978
+1283 <-> 1669
+1284 <-> 1152
+1285 <-> 1078, 1867
+1286 <-> 308, 1352
+1287 <-> 1560
+1288 <-> 1674, 1749
+1289 <-> 912
+1290 <-> 372, 1689
+1291 <-> 1495
+1292 <-> 699
+1293 <-> 1381, 1432, 1565, 1669
+1294 <-> 1926
+1295 <-> 148, 179, 1788, 1901
+1296 <-> 1296
+1297 <-> 960
+1298 <-> 396
+1299 <-> 563, 749, 865, 1733, 1882
+1300 <-> 109, 1423
+1301 <-> 49
+1302 <-> 1664
+1303 <-> 361
+1304 <-> 918, 1848
+1305 <-> 1376, 1659
+1306 <-> 381, 1482, 1638
+1307 <-> 201
+1308 <-> 600, 1185
+1309 <-> 682, 862
+1310 <-> 1310, 1857
+1311 <-> 278
+1312 <-> 565
+1313 <-> 1165
+1314 <-> 1357, 1816
+1315 <-> 1315
+1316 <-> 306, 1417
+1317 <-> 762, 1730
+1318 <-> 1206
+1319 <-> 786, 1489
+1320 <-> 1723
+1321 <-> 625, 638, 761
+1322 <-> 442
+1323 <-> 796, 1594, 1953
+1324 <-> 1755
+1325 <-> 341
+1326 <-> 802, 1864
+1327 <-> 1327
+1328 <-> 23, 1513
+1329 <-> 645, 851, 1682
+1330 <-> 176, 464
+1331 <-> 797, 1913
+1332 <-> 424
+1333 <-> 479, 809
+1334 <-> 89, 599, 631, 860, 1493
+1335 <-> 1, 227
+1336 <-> 750
+1337 <-> 534
+1338 <-> 218, 822, 858, 859
+1339 <-> 451, 719
+1340 <-> 28, 911, 1958
+1341 <-> 719
+1342 <-> 1234, 1417
+1343 <-> 625
+1344 <-> 985
+1345 <-> 280
+1346 <-> 1758
+1347 <-> 1347
+1348 <-> 644, 1907, 1927
+1349 <-> 149, 1882
+1350 <-> 1205, 1755
+1351 <-> 1087
+1352 <-> 618, 1286, 1837
+1353 <-> 937
+1354 <-> 589, 1909
+1355 <-> 12, 140, 606, 1646
+1356 <-> 1590
+1357 <-> 239, 308, 1314, 1990
+1358 <-> 82
+1359 <-> 426
+1360 <-> 1189
+1361 <-> 1138
+1362 <-> 1007
+1363 <-> 759
+1364 <-> 517, 1098
+1365 <-> 894
+1366 <-> 182, 1366
+1367 <-> 484
+1368 <-> 1765, 1963
+1369 <-> 602, 912
+1370 <-> 268
+1371 <-> 1877
+1372 <-> 1025
+1373 <-> 427, 622, 1207
+1374 <-> 404, 543, 803, 882
+1375 <-> 632, 1414
+1376 <-> 210, 471, 1305
+1377 <-> 1280
+1378 <-> 1125, 1215
+1379 <-> 383
+1380 <-> 486
+1381 <-> 783, 1293
+1382 <-> 1382
+1383 <-> 172, 747, 1027
+1384 <-> 75
+1385 <-> 261, 681, 1176, 1651
+1386 <-> 231
+1387 <-> 1387
+1388 <-> 1565
+1389 <-> 59
+1390 <-> 1237
+1391 <-> 848
+1392 <-> 60
+1393 <-> 927, 999
+1394 <-> 966, 1103
+1395 <-> 767
+1396 <-> 154, 707
+1397 <-> 439, 449, 1479, 1782
+1398 <-> 990, 1095, 1945
+1399 <-> 298
+1400 <-> 1907
+1401 <-> 289, 642
+1402 <-> 287, 679
+1403 <-> 72, 1624
+1404 <-> 638, 943
+1405 <-> 1572
+1406 <-> 209, 1093, 1707
+1407 <-> 1496, 1618
+1408 <-> 983
+1409 <-> 115, 558, 1805
+1410 <-> 430, 553
+1411 <-> 720
+1412 <-> 103
+1413 <-> 1733
+1414 <-> 1375, 1796
+1415 <-> 1601
+1416 <-> 903, 1718, 1971
+1417 <-> 1316, 1342, 1626
+1418 <-> 243, 266, 317, 1418, 1468, 1505
+1419 <-> 1419
+1420 <-> 913, 1836
+1421 <-> 77, 1132, 1502
+1422 <-> 533, 952
+1423 <-> 71, 1300, 1947
+1424 <-> 1231
+1425 <-> 324
+1426 <-> 981
+1427 <-> 21, 1575, 1696, 1798
+1428 <-> 290, 902, 1581
+1429 <-> 509, 748
+1430 <-> 1430
+1431 <-> 1967
+1432 <-> 1293
+1433 <-> 362, 1922
+1434 <-> 1486
+1435 <-> 451, 1779
+1436 <-> 393, 548, 1121, 1514
+1437 <-> 772, 1257, 1462, 1493
+1438 <-> 371, 713, 1557
+1439 <-> 874
+1440 <-> 786
+1441 <-> 143, 565, 1629
+1442 <-> 576, 603
+1443 <-> 1445
+1444 <-> 505, 1444, 1703
+1445 <-> 1038, 1443
+1446 <-> 247, 342
+1447 <-> 23
+1448 <-> 1935
+1449 <-> 159
+1450 <-> 38, 1450
+1451 <-> 1528, 1817
+1452 <-> 318, 1157, 1633
+1453 <-> 577, 1264
+1454 <-> 254
+1455 <-> 1487
+1456 <-> 633, 1072
+1457 <-> 43, 861
+1458 <-> 345, 1858
+1459 <-> 354, 880
+1460 <-> 1718
+1461 <-> 545, 713, 1119
+1462 <-> 1437
+1463 <-> 385, 1886, 1995
+1464 <-> 1862
+1465 <-> 490
+1466 <-> 850
+1467 <-> 376, 436, 1991
+1468 <-> 839, 1048, 1418, 1558, 1792
+1469 <-> 750
+1470 <-> 756, 1037
+1471 <-> 1878
+1472 <-> 1080, 1571
+1473 <-> 291, 1242
+1474 <-> 658, 1482
+1475 <-> 1930
+1476 <-> 312
+1477 <-> 389, 1096
+1478 <-> 474, 1588
+1479 <-> 530, 1397
+1480 <-> 469, 699
+1481 <-> 881, 916
+1482 <-> 1306, 1474
+1483 <-> 130
+1484 <-> 1558, 1877
+1485 <-> 169, 377, 1209, 1647
+1486 <-> 138, 412, 986, 1434
+1487 <-> 512, 804, 1455
+1488 <-> 818
+1489 <-> 1319, 1489
+1490 <-> 1053, 1228, 1490
+1491 <-> 632
+1492 <-> 521, 1566
+1493 <-> 305, 1334, 1437, 1620, 1732
+1494 <-> 1188, 1600
+1495 <-> 307, 394, 1291, 1495
+1496 <-> 1031, 1063, 1407
+1497 <-> 38
+1498 <-> 242
+1499 <-> 399
+1500 <-> 1998
+1501 <-> 1557
+1502 <-> 1063, 1421
+1503 <-> 470, 1503
+1504 <-> 785, 830
+1505 <-> 1418
+1506 <-> 1723, 1958
+1507 <-> 640
+1508 <-> 183
+1509 <-> 263
+1510 <-> 1642
+1511 <-> 405
+1512 <-> 1697
+1513 <-> 1263, 1328
+1514 <-> 1008, 1436
+1515 <-> 886, 1105
+1516 <-> 1126, 1131
+1517 <-> 80, 1850
+1518 <-> 536, 1121
+1519 <-> 641, 1809
+1520 <-> 665, 684
+1521 <-> 1521
+1522 <-> 508, 1036, 1593
+1523 <-> 1218
+1524 <-> 1747
+1525 <-> 281, 1525
+1526 <-> 670
+1527 <-> 1527
+1528 <-> 1001, 1451
+1529 <-> 531, 1153
+1530 <-> 445
+1531 <-> 734
+1532 <-> 48, 515, 830
+1533 <-> 847, 1549
+1534 <-> 285, 318
+1535 <-> 538
+1536 <-> 1742
+1537 <-> 418, 651, 993, 1173, 1999
+1538 <-> 154, 438, 1216, 1693
+1539 <-> 683, 740, 1539, 1982
+1540 <-> 257, 934
+1541 <-> 846, 1111, 1160, 1758
+1542 <-> 1612
+1543 <-> 866
+1544 <-> 377, 630
+1545 <-> 765
+1546 <-> 1907
+1547 <-> 121, 1938
+1548 <-> 1548
+1549 <-> 273, 322, 1044, 1533
+1550 <-> 403, 846
+1551 <-> 195, 1915
+1552 <-> 861, 1865
+1553 <-> 1221
+1554 <-> 83
+1555 <-> 479, 551
+1556 <-> 242, 327
+1557 <-> 1016, 1201, 1438, 1501
+1558 <-> 1468, 1484
+1559 <-> 1618
+1560 <-> 979, 1287
+1561 <-> 1038
+1562 <-> 63, 726, 793
+1563 <-> 1, 1563, 1634
+1564 <-> 807
+1565 <-> 1293, 1388
+1566 <-> 1492
+1567 <-> 807, 1594
+1568 <-> 1049
+1569 <-> 868, 1180
+1570 <-> 929, 1044, 1833
+1571 <-> 1472
+1572 <-> 200, 267, 1405
+1573 <-> 867, 1122
+1574 <-> 253
+1575 <-> 589, 1427, 1622, 1705
+1576 <-> 826
+1577 <-> 1780
+1578 <-> 386
+1579 <-> 1579
+1580 <-> 1699
+1581 <-> 1428
+1582 <-> 60, 717
+1583 <-> 1583
+1584 <-> 408
+1585 <-> 1585
+1586 <-> 735
+1587 <-> 975, 1258, 1587, 1619
+1588 <-> 1249, 1478
+1589 <-> 549, 728, 1237
+1590 <-> 951, 1237, 1356
+1591 <-> 70, 1639
+1592 <-> 1592, 1992
+1593 <-> 63, 78, 1138, 1522
+1594 <-> 1323, 1567
+1595 <-> 1966
+1596 <-> 947
+1597 <-> 533, 702
+1598 <-> 648, 1615
+1599 <-> 1622, 1694
+1600 <-> 356, 402, 1494
+1601 <-> 1023, 1415
+1602 <-> 240, 614, 1813, 1925
+1603 <-> 1645
+1604 <-> 1969
+1605 <-> 106
+1606 <-> 381, 1123
+1607 <-> 423
+1608 <-> 801
+1609 <-> 968, 1684
+1610 <-> 8, 269
+1611 <-> 1840
+1612 <-> 1542, 1933
+1613 <-> 704, 1725
+1614 <-> 503, 847
+1615 <-> 75, 1598
+1616 <-> 907, 1115
+1617 <-> 635, 935, 1076, 1115
+1618 <-> 1407, 1559
+1619 <-> 93, 1193, 1587
+1620 <-> 538, 1493
+1621 <-> 798, 1672, 1911
+1622 <-> 306, 1575, 1599
+1623 <-> 528, 806, 964
+1624 <-> 1403, 1989
+1625 <-> 736, 1185
+1626 <-> 1210, 1417
+1627 <-> 1, 160, 674
+1628 <-> 1844
+1629 <-> 173, 1441, 1930
+1630 <-> 86, 350, 433, 576
+1631 <-> 613
+1632 <-> 583, 788
+1633 <-> 1452
+1634 <-> 1563
+1635 <-> 922
+1636 <-> 1077, 1166, 1636
+1637 <-> 17, 1156, 1267
+1638 <-> 1306
+1639 <-> 333, 1591
+1640 <-> 1640
+1641 <-> 960
+1642 <-> 765, 932, 1510
+1643 <-> 317, 810, 881
+1644 <-> 522
+1645 <-> 1603, 1719
+1646 <-> 1009, 1355
+1647 <-> 284, 1485
+1648 <-> 706, 1785
+1649 <-> 940, 1017
+1650 <-> 1170
+1651 <-> 1385
+1652 <-> 39, 969, 1182, 1652
+1653 <-> 246, 637, 1919
+1654 <-> 380, 1137, 1923
+1655 <-> 324
+1656 <-> 1986
+1657 <-> 610, 1067
+1658 <-> 1281
+1659 <-> 1305
+1660 <-> 1224, 1869
+1661 <-> 1225
+1662 <-> 50, 1247
+1663 <-> 313
+1664 <-> 885, 1302, 1870
+1665 <-> 1206
+1666 <-> 927, 1063, 1903
+1667 <-> 1164
+1668 <-> 158, 1989
+1669 <-> 1134, 1283, 1293, 1669
+1670 <-> 387, 593, 1884
+1671 <-> 689, 982
+1672 <-> 612, 955, 1621
+1673 <-> 690, 1097
+1674 <-> 746, 1288
+1675 <-> 582, 1675
+1676 <-> 124, 1129
+1677 <-> 24, 455, 1979
+1678 <-> 363, 878, 1123
+1679 <-> 1, 156, 542, 562, 1247
+1680 <-> 587
+1681 <-> 208, 812
+1682 <-> 1329
+1683 <-> 1225
+1684 <-> 739, 1609
+1685 <-> 710
+1686 <-> 1027, 1147, 1939
+1687 <-> 238, 708, 1740
+1688 <-> 268
+1689 <-> 981, 1290, 1814
+1690 <-> 1148
+1691 <-> 998
+1692 <-> 893, 1862
+1693 <-> 397, 763, 1538
+1694 <-> 740, 1599
+1695 <-> 1695
+1696 <-> 131, 135, 1427
+1697 <-> 404, 1512
+1698 <-> 482, 1930
+1699 <-> 514, 1025, 1580
+1700 <-> 321, 331, 1945
+1701 <-> 1749
+1702 <-> 1702
+1703 <-> 1444
+1704 <-> 61, 761
+1705 <-> 1575
+1706 <-> 1706
+1707 <-> 972, 1406
+1708 <-> 23, 1791
+1709 <-> 878
+1710 <-> 148
+1711 <-> 1848
+1712 <-> 397
+1713 <-> 1899
+1714 <-> 516, 1860
+1715 <-> 1715
+1716 <-> 781
+1717 <-> 243, 417, 471
+1718 <-> 1416, 1460, 1785
+1719 <-> 1045, 1645, 1719
+1720 <-> 857, 1104
+1721 <-> 1971
+1722 <-> 1742, 1998
+1723 <-> 85, 899, 1320, 1506
+1724 <-> 807, 1183
+1725 <-> 552, 1613
+1726 <-> 495, 663, 813
+1727 <-> 1727
+1728 <-> 281, 492
+1729 <-> 451
+1730 <-> 474, 832, 1317
+1731 <-> 1858
+1732 <-> 691, 1493
+1733 <-> 646, 1299, 1413, 1733
+1734 <-> 750, 1183
+1735 <-> 446
+1736 <-> 443
+1737 <-> 740
+1738 <-> 137, 286, 969
+1739 <-> 1075
+1740 <-> 1687, 1942
+1741 <-> 1207
+1742 <-> 1536, 1722, 1742
+1743 <-> 248, 1180, 1743
+1744 <-> 130, 908, 1744
+1745 <-> 1745
+1746 <-> 850
+1747 <-> 1524, 1747
+1748 <-> 186, 1748
+1749 <-> 654, 1288, 1701, 1871
+1750 <-> 787
+1751 <-> 1751
+1752 <-> 571
+1753 <-> 1753
+1754 <-> 1754
+1755 <-> 731, 835, 921, 1049, 1324, 1350
+1756 <-> 1935
+1757 <-> 486, 1224
+1758 <-> 1346, 1541
+1759 <-> 196, 842
+1760 <-> 163, 729, 1125
+1761 <-> 170
+1762 <-> 891
+1763 <-> 410, 1763
+1764 <-> 309
+1765 <-> 1368
+1766 <-> 1031
+1767 <-> 898, 1955
+1768 <-> 360, 965
+1769 <-> 160
+1770 <-> 1079, 1868
+1771 <-> 575, 786
+1772 <-> 332
+1773 <-> 51, 910
+1774 <-> 347, 1122, 1130
+1775 <-> 1210
+1776 <-> 762, 1776
+1777 <-> 1948
+1778 <-> 833
+1779 <-> 571, 1435, 1779
+1780 <-> 434, 664, 1577
+1781 <-> 1958
+1782 <-> 147, 1106, 1397
+1783 <-> 1846
+1784 <-> 1784, 1866
+1785 <-> 1648, 1718, 1937
+1786 <-> 871
+1787 <-> 271, 1041
+1788 <-> 1295, 1962
+1789 <-> 1789
+1790 <-> 457, 638, 784
+1791 <-> 1708, 1791
+1792 <-> 1468
+1793 <-> 420
+1794 <-> 721
+1795 <-> 174, 614
+1796 <-> 852, 1414
+1797 <-> 511
+1798 <-> 107, 1427
+1799 <-> 812, 1109
+1800 <-> 988
+1801 <-> 684
+1802 <-> 670
+1803 <-> 1081, 1083
+1804 <-> 462
+1805 <-> 1236, 1409
+1806 <-> 789
+1807 <-> 1212, 1267
+1808 <-> 1841
+1809 <-> 1519, 1947
+1810 <-> 108, 453, 1167, 1943
+1811 <-> 139, 581, 734, 1955
+1812 <-> 1225, 1281, 1812
+1813 <-> 1602
+1814 <-> 1689
+1815 <-> 378
+1816 <-> 796, 1314
+1817 <-> 601, 1451
+1818 <-> 357
+1819 <-> 200, 1858
+1820 <-> 1834, 1904
+1821 <-> 1821
+1822 <-> 10, 859
+1823 <-> 694, 801, 864
+1824 <-> 353, 713, 909
+1825 <-> 224, 357
+1826 <-> 254, 1230
+1827 <-> 739, 793, 1221
+1828 <-> 1004, 1948
+1829 <-> 373
+1830 <-> 980
+1831 <-> 1831
+1832 <-> 140
+1833 <-> 1570
+1834 <-> 290, 1820
+1835 <-> 472, 1008
+1836 <-> 1420, 1963
+1837 <-> 1352
+1838 <-> 495
+1839 <-> 960
+1840 <-> 789, 1089, 1611
+1841 <-> 340, 1808
+1842 <-> 65, 1253
+1843 <-> 296
+1844 <-> 302, 1628
+1845 <-> 432, 892, 1971
+1846 <-> 330, 669, 1004, 1783
+1847 <-> 525
+1848 <-> 169, 996, 1304, 1711
+1849 <-> 57, 96
+1850 <-> 1517, 1972
+1851 <-> 32, 657
+1852 <-> 518
+1853 <-> 436, 692, 1042
+1854 <-> 354, 1854
+1855 <-> 619, 1855, 1893
+1856 <-> 745
+1857 <-> 1310
+1858 <-> 1458, 1731, 1819
+1859 <-> 555, 1004
+1860 <-> 440, 1714
+1861 <-> 228, 814
+1862 <-> 722, 1464, 1692
+1863 <-> 509
+1864 <-> 930, 1265, 1326
+1865 <-> 1552
+1866 <-> 389, 1784
+1867 <-> 1285, 1918
+1868 <-> 578, 1770, 1957
+1869 <-> 1660
+1870 <-> 672, 1664
+1871 <-> 799, 1006, 1749
+1872 <-> 1088
+1873 <-> 52, 569
+1874 <-> 1896
+1875 <-> 715, 963, 1177
+1876 <-> 94, 1189
+1877 <-> 392, 1371, 1484
+1878 <-> 41, 579, 1471
+1879 <-> 652
+1880 <-> 1162, 1880
+1881 <-> 1236
+1882 <-> 1299, 1349
+1883 <-> 482
+1884 <-> 348, 1670
+1885 <-> 757
+1886 <-> 117, 737, 1463
+1887 <-> 934, 1178
+1888 <-> 717
+1889 <-> 1899
+1890 <-> 754, 1201
+1891 <-> 155, 504
+1892 <-> 446, 507
+1893 <-> 1855
+1894 <-> 182
+1895 <-> 378, 650
+1896 <-> 524, 1874
+1897 <-> 1922
+1898 <-> 446
+1899 <-> 1713, 1889, 1899
+1900 <-> 1900
+1901 <-> 1295
+1902 <-> 247
+1903 <-> 37, 862, 1666
+1904 <-> 1820
+1905 <-> 502
+1906 <-> 294, 978
+1907 <-> 526, 566, 1128, 1348, 1400, 1546
+1908 <-> 1908
+1909 <-> 995, 1021, 1354
+1910 <-> 407
+1911 <-> 1204, 1621
+1912 <-> 647, 814, 852, 1016, 1262
+1913 <-> 565, 938, 1331
+1914 <-> 1126
+1915 <-> 411, 456, 1551
+1916 <-> 211
+1917 <-> 1033, 1946
+1918 <-> 1867
+1919 <-> 901, 1653
+1920 <-> 278, 653
+1921 <-> 47
+1922 <-> 1433, 1897
+1923 <-> 1654
+1924 <-> 339
+1925 <-> 1602, 1951
+1926 <-> 352, 1294
+1927 <-> 684, 1348
+1928 <-> 975
+1929 <-> 781, 899
+1930 <-> 1475, 1629, 1698
+1931 <-> 949
+1932 <-> 977
+1933 <-> 1059, 1087, 1612
+1934 <-> 756, 1934
+1935 <-> 145, 1448, 1756
+1936 <-> 379
+1937 <-> 1785
+1938 <-> 1547
+1939 <-> 532, 1686
+1940 <-> 429
+1941 <-> 431
+1942 <-> 1740, 1942
+1943 <-> 1064, 1810
+1944 <-> 1015
+1945 <-> 409, 1057, 1398, 1700
+1946 <-> 592, 601, 690, 1917
+1947 <-> 1423, 1809
+1948 <-> 883, 895, 1777, 1828
+1949 <-> 1949
+1950 <-> 1950
+1951 <-> 65, 1031, 1925
+1952 <-> 327
+1953 <-> 1323
+1954 <-> 15, 630, 1155
+1955 <-> 277, 1767, 1811
+1956 <-> 522, 900
+1957 <-> 1044, 1196, 1868
+1958 <-> 1340, 1506, 1781
+1959 <-> 125, 679
+1960 <-> 57, 194, 534, 863, 1960
+1961 <-> 1028
+1962 <-> 781, 1018, 1788
+1963 <-> 372, 1186, 1368, 1836
+1964 <-> 1012, 1964
+1965 <-> 484, 784
+1966 <-> 527, 1595
+1967 <-> 1431, 1967
+1968 <-> 587
+1969 <-> 656, 1604
+1970 <-> 882
+1971 <-> 539, 1280, 1416, 1721, 1845
+1972 <-> 889, 1039, 1186, 1850
+1973 <-> 251, 332, 629
+1974 <-> 1183
+1975 <-> 1975
+1976 <-> 1011
+1977 <-> 174, 579
+1978 <-> 662, 1282
+1979 <-> 205, 1065, 1074, 1677
+1980 <-> 268, 549, 833, 1143
+1981 <-> 786, 928
+1982 <-> 634, 1539
+1983 <-> 35, 1983
+1984 <-> 1984
+1985 <-> 477, 1985
+1986 <-> 257, 1656, 1986
+1987 <-> 1987
+1988 <-> 825
+1989 <-> 1624, 1668
+1990 <-> 1357
+1991 <-> 66, 738, 905, 1467
+1992 <-> 744, 950, 1592
+1993 <-> 779
+1994 <-> 326
+1995 <-> 1463
+1996 <-> 713
+1997 <-> 90, 513
+1998 <-> 447, 1500, 1722
+1999 <-> 12, 1537
\ No newline at end of file
diff --git a/2017/src/bin/day12.rs b/2017/src/bin/day12.rs
new file mode 100644
index 0000000..b133ba6
--- /dev/null
+++ b/2017/src/bin/day12.rs
@@ -0,0 +1,53 @@
+use std::collections::{HashMap, HashSet};
+use std::io::{self, Read};
+
+fn solve1(input: &str) -> usize {
+    let mut pipes: HashMap<u32, Vec<u32>> = HashMap::new();
+    for line in input.lines() {
+        let mut words = line.split_whitespace();
+        let src = words.next().unwrap().parse().unwrap();
+        assert_eq!(Some("<->"), words.next());
+        for dest in words {
+            let dest = dest.trim_right_matches(',').parse().unwrap();
+            pipes.entry(src).or_insert(vec![]).push(dest);
+            pipes.entry(dest).or_insert(vec![]).push(src);
+        }
+    }
+
+    let mut group = HashSet::new();
+    group.insert(0);
+
+    let mut prev = None;
+    while Some(group.len()) != prev {
+        prev = Some(group.len());
+        for (src, dests) in &pipes {
+            if group.contains(src) {
+                group.extend(dests);
+            }
+        }
+    }
+
+    group.len()
+}
+
+fn main() {
+    let mut input = String::new();
+    io::stdin().read_to_string(&mut input).unwrap();
+
+    println!("Part 1: {}", solve1(&input));
+}
+
+#[test]
+fn part1() {
+    assert_eq!(6, solve1(
+"\
+0 <-> 2
+1 <-> 1
+2 <-> 0, 3, 4
+3 <-> 2, 4
+4 <-> 2, 3, 6
+5 <-> 6
+6 <-> 4, 5
+"
+    ));
+}