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