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