[7, 4, 0, 2, 1, 5, 3, 8, 6, 9] [7, 0, 2, 1, 5, 3, 8, 6, 9] [0, 2, 1, 5, 3, 8, 6, 9] [2, 1, 5, 3, 8, 6, 9] [1, 5, 3, 8, 6, 9] [5, 3, 8, 6, 9] [5, 8, 6, 9] [8, 6, 9] [8, 9] [9] 3 5 4 6 1 7 8 2 9 10