in reply to For loop abortions

What error did you get? I'm getting none, only a warning unrelated to the for loops:
Scalar value @sig[...] better written as $sig[...] at -e line 15.

It just means that with a single index, you should rather write $sig[$j] .

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,