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