vc
0
1
vc
0
2
vc
0
1
vc
1
3
vc
0
2
vc
0
4
vc
0
1
vc
0
2
vc
0
2
vc
0
3
vc
0
2
vc
0
2
vc
0
2
vc
0
2
vc
0
1
vc
0
2
vc
0
1