0
swallow
1
2
3
1
4
1
1
1
2
3
5
0
0
1
3
1
1
1
1
2
2
3
0
2
2
3
4
1
3
1
3
3
2
1
1
3
0
1
7
5
0
3
2
5
1
6
2
4
3
