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