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