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