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