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#!/usr/bin/perl use warnings; ... } print $u->glue(0, pdl(@r));
[ [ 0 1 2 3] ... [ 3 4 5 1] [ 6 7 8 2] ]
($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,