[20, [2], [4]] [28, [2, 4], [3]] [8, [3]] [10, [1, 3]] [0] [0] [10, [1], [3]] [0] [0] [4, [2]] [6, [1, 2]] [0] [6, [1, 2]] [4, [2]] [0] [0] [0] [0] [12, [2, 3]] [26, [1], [3, 4]] 38