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