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