23:43 >perl 1148_SoPW.pl
key is c, value is 13, hash is { a => 11, b => 12, c => 13, d => 14 }
key is x, value is c, hash is { x => "c" }
key is x, value is cx, hash is { x => "cx" }
key is x, value is cxx, hash is { x => "cxx" }
key is x, value is cxxx, hash is { x => "cxxx" }
key is x, value is cxxxx, hash is { x => "cxxxx" }
key is x, value is cxxxxx, hash is { x => "cxxxxx" }
key is x, value is cxxxxxx, hash is { x => "cxxxxxx" }
key is x, value is cxxxxxxx, hash is { x => "cxxxxxxx" }
key is x, value is cxxxxxxxx, hash is { x => "cxxxxxxxx" }
...