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