2646 2
2645 3
2645 4
2644 3
2644 1
2644 0
2643 1
2642 0
2642 1
2642 2
2642 5
2641 3
2641 1
2640 3
2640 10
2640 1
2640 2
2639 2
2639 1
2639 0