3
oil
1
2
3
3
1
2
1
2
2
0
3
4
1
1
1
2
1
1
2
1
3
1
0
4
2
2
2
1
1
1
1
3
1
2
1
1
4
5
2
1
1
2
1
2
2
2
2
2
1
