pdl [
      [4, 2, 6, 8],
      [2, 5, 3, 4],
      [9, 5, 5, 6],
      [7, 4, 3, 6],
    ],

pdl [
      [21, 11.5, 15.5, 22],
      [2, 5, 3, 4],
      [9, 5, 5, 6],
      [7, 4, 3, 6],
    ],