2682 0
2682 2
2682 1
2681 1
2681 0
2680 1
2679 1
2679 2
2679 4
2678 5
2677 1
2677 3
2676 2
2675 2
2674 0
2673 1
2673 2
2672 1
2672 3
2671 7