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