123456
sub _ { ${_} = q{HBAy@YA\l{}nK@\KbB\K~{}WZG@[CCAm}; ${_} = { q{{{}}} => [ reverse +split +q{{}} ] }; ${_}->{q{{{}}}}->[ @_ ];}$_ = reverse +_( {}, {} ) ^ qq{\056} x +length &_( {}, {} ) and +print;