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