Dumpvalue: 'a' => ARRAY(0x460ee8) 0 1 1 2 2 3 'b' => ARRAY(0x4e3e50) 0 HASH(0x4d964c) 'X' => 1 'Y' => 2 1 HASH(0x4e3e14) 'X' => ARRAY(0x4d967c) 0 1 1 2 2 3 'Y' => ARRAY(0x4e3d9c) 0 4 1 5 2 6 'Z' => ARRAY(0x4e3dd8) 0 7 1 8 2 9