idnr: 954
3
1
2
3
2
1
Difficulty: Easy
idnr: 230
2
1
3
3
1
2
Difficulty: Medium
idnr: 41
2
1
1
2
3
3
Difficulty: Medium
idnr: 1136
2
4
1
3
1
4
2
3
Difficulty: Easy