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