0
no smoking
3
4
1
2
1
1
4
3
1
1
1
0
4
4
2
2
1
1
1
1
2
0
2
1
2
1
0
1
2
2
2
3
4
3
1
3
3
0
1
1
0
1
2
2
1
3
1
0
0
