2686 2
2686 1
2686 0
2685 2
2685 0
2684 3
2684 1
2683 7
2683 1
2683 5
2682 1
2682 2
2681 3
2681 1
2680 0
2680 3
2680 1
2680 5
2679 1
2679 4