15
  0  0  0  0  0  0  0  8 10  0  0  0  0  0  6
  0  0  0  0  8  0  8  0  0  0  0  0  0  4  0
  0  0  0  8  0 10  0  0  0  8  0  0  0  0  0
  0  0  8  0  0  0  0  9  0  0  0  0  5  0  4
  0  8  0  0  0  0  0  0  9  0  0  1  0  0  3
  0  0 10  0  0  0  0  8  0  0  0  0  0  0  0
  0  8  0  0  0  0  0  0  0  0  0  8  0  0  0
  8  0  0  9  0  8  0  0  0  0  0  0  0  0  0
 10  0  0  0  9  0  0  0  0  0 10  0  0  0  0
  0  0  8  0  0  0  0  0  0  0  0  0  6  0  0
  0  0  0  0  0  0  0  0 10  0  0  7  0  0  0
  0  0  0  0  1  0  8  0  0  0  7  0  0  0  0
  0  0  0  5  0  0  0  0  0  6  0  0  0  3  0
  0  4  0  0  0  0  0  0  0  0  0  0  3  0 10
  6  0  0  4  3  0  0  0  0  0  0  0  0 10  0
  
  0  1  9  3  3  1  5  3  8 10  2  4  5  2  2
  1  0  1  3  7  9  1  7  2  4 10  2 10  7  7
  9  1  0  1  9  2  7  1  5  8  8  4  2  2  7
  3  3  1  0  1  6  7 10  1  2  6  8  2  7  9
  3  7  9  1  0 10  2  3  7  1  5  9  3 10  4
  1  9  2  6 10  0  1 10  3  6  1 10  6  2 10
  5  1  7  7  2  1  0  1 10  4 10  1  3  4  6
  3  7  1 10  3 10  1  0  1  3  6  5  1  9 10
  8  2  5  1  7  3 10  1  0  1  4  8  4  1  3
 10  4  8  2  1  6  4  3  1  0  3  4  9 10  1
  2 10  8  6  5  1 10  6  4  3  0  1  6  5  7
  4  2  4  8  9 10  1  5  8  4  1  0  1  2  4
  5 10  2  2  3  6  3  1  4  9  6  1  0  1  3
  2  7  2  7 10  2  4  9  1 10  5  2  1  0  1
  2  7  7  9  4 10  6 10  3  1  7  4  3  1  0