2678 0
2677 2
2675 2
2675 3
2675 1
2674 4
2674 3
2673 3
2673 1
2672 3
2672 1
2671 1
2671 3
2671 0
2670 4
2669 2
2669 1
2668 4
2668 2
2668 3
2667 3