2686 0
2685 3
2685 1
2685 2
2684 1
2683 0
2683 4
2683 2
2682 2
2682 0
2682 3
2682 1
2681 2
2681 0
2680 3
2680 1
2680 0
2680 2
2679 1
2679 0