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