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