@m=((31,(15)x8)x8,(31)x9);$m[$c]|=16,!(@a=grep/-?./&!(16+$|*$'&$m[$c+$&] ),-18,11,94,-92)?$c=pop@p:${$_=$a[rand@a];s/-?.//;push@p,$c;$m[$c]&=~8/$ _;++$u-64?$m[$c+=$&]&=~$_:map$_&=15,@m,$c=$|=1},$|&&9x9999999,print"\ec" ,map$_%9?($_-$c?$m[$_]&2?_:$":o).($m[$_]&8?"|":_):$/,1..72until$c>70&$|