IFS=X
eval set 0 \{-13..{31,29,3{1,0,1,0,1,1,0,1,0,1}}} 0 0
set ${@/-*/0}
printf %\ 3.d ${@:13}|while read -n21 i
do
[[ $i$j =~ [0-9] ]]&&[[ $i =~ .*[0-9]|^ ]]&&echo "$BASH_REMATCH"
j=$i
done