1 2v1=1\ +\ 1 3v2=D 4v3=C123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 5f() { v4="$*"; } 6 7while [ ${#v2} -lt 1250 ]; do 8 eval $v2=$((3+${#v2})) $v3=$((4-${#v2})) 9 eval f $(($v2+ $v1 +$v3)) 10 if [ $v4 -ne 9 ]; then 11 echo bad: $v4 -ne 9 at ${#v2} 12 fi 13 v2=x$v2 14 v3=y$v3 15done 16