without the mistake in my input file 1

$VAR1 = {
          'a' => {
                   '13' => {
                             '14' => 1
                           },
                   '12' => {
                             '17' => 4,
                             '15' => 2
                           },
                   '14' => {
                             '19' => 5
                           }
                 },
          'b' => {
                   '10' => {
                             '15' => 5
                           },
                   '12' => {
                             '15' => 4
                           }
                 }
        };