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##g;eval$a';@z=map{$d=0;s#...#($d=!$d|0)x$&#eg;$_=[split//]}split/x/;{$b
=reverse$a;print"\ec";map{print$_?chop$b:$"for@$_;print$/;push@$_,shift@
$_}@z;select$q,$q,$q,.05;redo}`;$a=~s#\s##g;eval$a