2688 3
2687 0
2686 1
2686 2
2684 1
2682 2
2682 1
2681 1
2680 0
2680 3
2680 2
2679 3
2677 1
2674 0
2673 3
2671 1
2670 3
2670 1
2669 1
2668 0