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