2688 0
2687 0
2687 3
2686 1
2685 1
2685 3
2685 2
2684 1
2683 4
2683 1
2682 2
2682 3
2680 2
2680 1
2679 1
2678 1
2678 2
2678 0
2677 3
2674 1