IFS=-
read min max
seq "$min" "$max" \
	| grep '^1*2*3*4*5*6*7*8*9*$' \
	| grep -E '00|11|22|33|44|55|66|77|88|99' \
	| wc -l
seq "$min" "$max" \
	| grep '^1*2*3*4*5*6*7*8*9*$' \
	| sed 's/.*/x&x/' \
	| grep -E '[^0]00[^0]|[^1]11[^1]|[^2]22[^2]|[^3]33[^3]|[^4]44[^4]|[^5]55[^5]|[^6]66[^6]|[^7]77[^7]|[^8]88[^8]|[^9]99[^9]' \
	| wc -l