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