2
strip
1
2
2
4
0
3
3
1
4
1
3
1
4
1
3
1
3
2
2
2
2
3
2
2
7
1
0
2
0
1
2
2
1
1
2
2
3
4
3
1
6
3
1
1
5
1
1
2
4
