2688 0
2687 0
2687 3
2686 0
2685 2
2685 0
2684 2
2684 1
2683 2
2683 1
2683 3
2682 1
2682 3
2680 1
2680 0
2680 2
2679 1
2679 2
2679 3
2678 0