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