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