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