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