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