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