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  1. or download this
    ...
Matching REx "\G \z" against ""
...
   3 <foo> <>                |  3:END(0)
Match possible, but length=0 is smaller than requested=1, failing!
Match failed
  2. or download this
    ($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,