3
oil
1
0
1
0
1
1
1
2
0
1
1
1
1
2
0
3
1
3
1
3
1
1
2
2
2
0
1
1
4
0
2
1
4
4
0
2
1
2
4
3
0
1
6
3
1
0
0
1
4
