0
strip
1
1
1
0
0
1
1
4
5
2
2
3
3
4
1
1
4
3
3
1
2
2
1
1
0
3
0
3
1
1
1
1
0
0
4
1
1
0
3
1
1
2
0
0
0
1
2
1
1
