0
2
1
0
2
1
0
3
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
1
3
2
0
2
1
1
6
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
