2681 0
2681 4
2681 2
2680 5
2680 1
2680 0
2679 2
2679 1
2678 0
2677 2
2677 0
2676 0
2676 3
2676 2
2675 2
2674 1
2674 0
2673 2
2672 1
2672 0
2671 3
2671 10