idnr: 1536
2
3
2
5
7
6
1
4
7
4
3
1
5
6
Difficulty: Medium
idnr: 3546
8
9
5
8
6
5
4
7
4
7
3
6
2
1
2
1
3
9
Difficulty: Medium
idnr: 6712
7
2
1
3
4
8
6
2
5
7
3
4
5
8
6
1
Difficulty: Medium
idnr: 2010
2
3
6
1
4
5
2
4
1
5
3
6
Difficulty: Medium