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