idnr: 1362
3
3 1
2
1 2
Difficulty: Medium
idnr: 148
3 4
1
2
1 4
2 3
Difficulty: Super easy
idnr: 21
2
1 1 3
3
2
Difficulty: Easy
idnr: 227
2
2
3
1
1 3
Difficulty: Medium