[b, c]
4
0
0
2
0
2
1
[d, c]
5
0
0
2
1
3
2
[d, e]
6
3
2
3
2
[f, e]
7
4
3
3
2
[f, e]
8
4
3
4
2
[g, e]
9
0
0
4
2
5
4
[c, e, d]
19
6
0
5
0
4
0
[c, e]
6
0
5
0
0
0
[c, e]
22
12
0
10
0
0
0
[c, e]
19
6
0
5
0
4
0
[c, e, d]
38
12
0
10
0
8
0