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