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