2689 1
2688 1
2688 0
2688 4
2687 1
2687 5
2687 3
2686 1
2686 7
2684 1
2681 0
2681 1
2680 4
2680 0
2680 5
2680 1
2679 4
2678 1
2678 0
2678 2
2677 0