20
16 13 18 15 17 19 11 14 12 20 
16 18 17 19 13 14 20 12 15 11 
20 15 18 14 16 12 13 11 19 17 
14 12 13 18 15 19 11 16 17 20 
20 12 11 13 16 17 15 18 14 19 
13 17 19 11 16 18 14 20 12 15 
18 16 20 12 19 11 15 13 14 17 
20 14 18 17 11 13 19 15 12 16 
14 20 13 16 11 18 19 17 12 15 
15 20 16 18 11 17 12 13 19 14 
2 8 5 6 3 10 7 4 9 1 
6 8 2 10 7 5 1 3 9 4 
10 4 1 2 9 5 6 7 3 8 
3 4 10 8 5 7 6 9 2 1 
10 7 2 3 1 6 5 8 9 4 
7 4 10 3 1 8 9 6 5 2 
4 8 7 10 6 3 5 9 1 2 
1 5 3 9 8 10 7 6 4 2 
9 4 8 10 2 1 6 5 3 7 
5 3 4 1 9 7 8 6 2 10 
forbidden 1 14
forbidden 1 15
forbidden 1 17
forbidden 1 18
forbidden 1 19
forbidden 1 20
forbidden 2 12
forbidden 2 13
forbidden 2 16
forbidden 2 17
forbidden 2 20
forbidden 3 12
forbidden 3 14
forbidden 3 15
forbidden 3 18
forbidden 3 20
forbidden 4 11
forbidden 4 13
forbidden 4 14
forbidden 4 19
forbidden 5 16
forbidden 5 19
forbidden 6 18
forbidden 6 19
forbidden 7 12
forbidden 7 18
forbidden 7 20
forbidden 8 12
forbidden 8 16
forbidden 8 18
forbidden 8 19
forbidden 9 15
forbidden 10 14
forbidden 10 17
forbidden 10 19