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