1,2,0,0,0,4,0
2,1,0,0,0,0,0
3,2,0,0,0,2,0
4,1,0,0,1,0,0
5,0,0,0,0,0,0
6,0,0,0,0,0,0
2773,0,0,0,0,0,0
2790,1,0,0,0,0,0
2795,2,0,0,1,0,0
