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