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