1
pov
0
1
1
0
2
1
1
0
1
1
0
0
0
0
0
0
0
1
0
0
15K
0
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
1
0
1
1
1
0
