2687 9
2686 0
2685 1
2685 3
2684 2
2683 3
2683 4
2682 3
2681 1
2681 4
2681 0
2680 1
2679 1
2678 4
2678 2
2677 0
2677 1
2676 0
2676 1
2675 9