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