0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
4
2
0
3
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
2
0
2
2
0
2
1
0
2
1
0
2
1
0
2
1
1
5
1
