#!/usr/bin/perl
$m=q\$g=59;$s=23;@v=($",$",'.',';','x','X','M');$t=[map{[(s
plit('',$_))[0..$g]]}reverse+split($/,$m)];sub'i{($b)=@_;$b
->[0]=[(0            )x($g+1)    ];for(@{$b->[    0]}){$_=$
#v*(int(r             and(7))     <3);}for(1.     .($s)){@{
$b}[$_]=[    (0)x(    $g+1)];      }}sub'p{(      $b)=@_;sy
stem($^O=    ~/MSW    in32/?'       cls':'c       lear');$s
tr='';for             $r(reve        rse(0        ..$s)){fo
r$c(0..$g           ){$str.=(    $t   ->[   $r    ][$c]eq$"
?$":@v[in    t$b->[$r][$c]]);    }$s       tr.    =$/;}prin
t$str;}su    b'f{($x)=@_;$b=[    ];i($b);for$r    (1..($s-1
)){for$c(    1..($g-1)){if(in    t(rand(2))){$    v=0;for$r
i(-1..1){    for$ci(-1..1){$v    +=$x->[$r+$ri    ][$c+$ci]
;}}$b->[$r][$c]=$v/9;}else{$b->[$r][$c]=$x->[$r-1][$c];}}}r
eturn $b;}$z=[];i($z);p($z);while(1){$z=f($z);p($z);}\;$m.=
"$/$/$/$/$/$/1;$/$/$/$/$/$/$/";;s//$m/;s/$"//g;s|$/||g;eval
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