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