30
20 25 26 16 28 21 24 30 19 29 18 17 22 23 27 
20 27 21 26 17 29 22 16 18 23 19 25 30 24 28 
29 25 17 18 27 26 19 24 16 22 28 23 21 20 30 
26 19 21 28 23 16 18 27 30 17 20 29 22 25 24 
19 22 24 29 20 18 30 23 26 28 25 27 17 16 21 
30 24 22 17 28 26 27 25 16 29 21 23 20 18 19 
22 16 17 28 19 25 21 24 23 20 26 27 30 18 29 
28 21 24 25 29 17 16 26 19 27 23 18 30 20 22 
18 28 17 16 21 29 23 22 24 19 26 20 25 27 30 
27 18 22 21 25 29 16 20 23 17 19 30 28 26 24 
16 21 30 27 17 20 29 26 18 23 28 24 19 25 22 
18 20 23 24 28 19 17 21 29 16 25 22 26 27 30 
27 24 17 29 16 22 21 23 20 28 25 19 26 18 30 
22 29 26 21 30 16 20 19 18 25 28 27 23 24 17 
21 22 20 18 28 23 26 19 17 30 29 27 25 24 16 
4 5 7 14 10 12 3 6 2 9 1 15 13 11 8 
14 5 10 13 1 12 11 2 8 15 6 7 9 3 4 
4 5 6 7 9 10 14 15 3 11 2 8 12 1 13 
10 11 3 7 15 1 8 2 5 4 6 14 12 9 13 
5 11 2 8 1 12 4 7 14 6 10 3 13 9 15 
6 13 5 11 7 14 9 12 4 2 1 10 3 8 15 
14 15 6 13 11 4 9 8 12 2 10 7 5 1 3 
14 2 9 3 12 13 6 11 7 10 4 1 15 5 8 
1 10 9 14 5 3 11 8 12 13 2 4 7 15 6 
6 8 15 11 3 7 9 13 10 1 2 4 12 14 5 
13 6 5 12 4 14 1 10 11 3 2 7 8 9 15 
4 1 7 3 11 12 9 6 8 14 10 13 15 5 2 
13 10 8 2 11 1 15 7 12 4 5 14 9 6 3 
14 15 11 5 8 12 4 7 3 6 13 2 10 9 1 
4 5 11 2 12 8 14 10 7 3 9 6 1 13 15 
forbidden 1 19
forbidden 1 27
forbidden 1 29
forbidden 2 21
forbidden 2 22
forbidden 2 23
forbidden 2 27
forbidden 2 28
forbidden 3 16
forbidden 3 26
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forbidden 4 16
forbidden 4 20
forbidden 4 28
forbidden 5 26
forbidden 5 27
forbidden 6 27
forbidden 7 18
forbidden 7 22
forbidden 7 25
forbidden 8 21
forbidden 8 22
forbidden 8 25
forbidden 8 26
forbidden 8 27
forbidden 9 18
forbidden 9 19
forbidden 9 25
forbidden 10 16
forbidden 10 18
forbidden 10 23
forbidden 10 25
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forbidden 10 29
forbidden 11 19
forbidden 11 20
forbidden 11 21
forbidden 11 22
forbidden 11 24
forbidden 11 26
forbidden 12 21
forbidden 13 19
forbidden 13 21
forbidden 13 27
forbidden 14 19
forbidden 14 20
forbidden 14 22
forbidden 14 24
forbidden 15 17
forbidden 15 18
forbidden 15 28