#!/usr/bin/perl -w
use strict;$|++;$_=<DATA>,y,0-9A-Za-z,G-PzA-B{($_)}="@ ;3r-yC-F81a-q,;sub _{chr(8)x shift};sub _1{print@_};my@i=split//;my($u,@o)=(undef
,("A"));select($u,$u,$u,0.01),$o[$#o+1]=chr(66+$#o),_1 $o[$#o-1]for(0..$#i);_1 _$#o+1;for my$c(0..$#i){my($e,$d)=(0,$c);$e=($#o/($#o-$c+
1))*0.010,select($u,$u,$u,$e),$o[$d]=($c/++$d%2)?$o[$d+1]:$o[$d],_1 $o[$d]for($c..$#i);_1 _(1),$i[$c],_ $#o+1 }_1 "\n"__DATA__
!Phnfd1MoPh9MPhkRrqBMRQS3!