idnr: 2895
2 3 1
2 3
3 2
3 3 4
2 3
2 1
1 3 2
Difficulty: Very Hard
idnr: 6796
2 5 2
1
1 2
3 7 4 3
1 1
2 2 1
2 3 2
Difficulty: Medium
idnr: 7424
1 3 2
2 3 1
2
4 5 4 3
1
3 6 3
2 2 1
Difficulty: Very easy
idnr: 6663
2 3 2
1
1 1 3 3
3 2 2
2 5 3 2
1 4 2
Difficulty: Easy