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