case 7 failed expected: 20 move 17 11 move 14 10 move 21 9 move 21 8 move 6 21 move 3 21 move 1 21 move 072 1 move 055 1 move 26 3 move 47 3 move 063 6 move u427 6 move u384 7 move 27 21 move 46 14 move u809 14 move 076 17 move 37 17 move u146 20 got: 21 move 21 2 move 21 4 move 14 5 move 17 7 move u384 8 move u427 9 move 063 10 move 47 11 move 1 13 move 3 15 move 6 16 move u146 18 move 37 19 move 076 20 move u809 21 move 46 21 move 27 14 move 17 move 26 1 move 055 3 move 072 6 input: 21 21 1 u146 0 u384 1 1 0 21 1 37 0 076 0 u427 1 063 1 47 1 14 1 26 1 3 0 17 1 6 0 12 0 u809 0 46 0 055 1 072 1 27 0