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