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