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