2688 2
2688 1
2688 0
2687 0
2686 2
2686 1
2686 0
2685 1
2685 0
2684 0
2684 1
2684 3
2682 1
2681 3
2681 0
2681 1
2680 2
2679 3
2679 2
2679 0