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