idnr: 639
4
9
5
6
1
1
7
4
4
8
4
6
1
3
4
7
Difficulty: Very easy (0)
idnr: 52
2
3
1
3
2
6
8
7
9
5
8
7
Difficulty: Very easy (0)
idnr: 333
6
9
5
6
7
4
9
4
9
7
5
5
3
8
Difficulty: Easy (0)
idnr: 383
6
6
1
8
3
9
7
3
3
6
5
2
1
7
6
5
Difficulty: Easy (0)