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