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