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#!/bin/sh
valid=0
validate() {
[ \
-n "${byr}" -a \
-n "${iyr}" -a \
-n "${eyr}" -a \
-n "${hgt}" -a \
-n "${hcl}" -a \
-n "${ecl}" -a \
-n "${pid}" \
] && valid=$((valid + 1))
unset byr iyr eyr hgt hcl ecl pid cid
}
while :; do
read -r line
last=$?
if [ -n "${line}" ]; then
for pair in $line; do
var=${pair%:*}
val=${pair#*:}
eval "${var}=${val}"
done
else
validate
fi
[ $last -ne 0 ] && break
done
validate
echo $valid
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