0
2
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
0
2
1
0
2
0
0
2
1
0
2
1
0
3
15
0
2
0
0
2
1
0
2
3
0
2
1
0
2
3
0
2
1
