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