2
1 1 7 1
3 1 5 4
3
1/1 1/1 3/1 1/1
3/1 1/1 5/1 4/1
3/1 1/1 7/1 1/1
4
1/1 1/1
3/1 1/1
5/1 4/1
7/1 1/1
1
3/1 1/1
1
3
1/1 1/1 3/1 1/1
3/1 1/1 5/1 4/1
3/1 1/1 7/1 1/1

