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