import numpy

c1 = [[1, 1/7, 1/5]
      [7, 1, 3]
      [5, 1/3, 1]]

c2 = [[1, 5, 9]
      [1/5, 1, 4]
      [1/9, 1/4, 1]]

c3 = [[1, 4, 1/5]
      [1/4, 1, 1/9]
      [5, 9, 1]]

c4 = [[1, 9, 4]
      [1/9, 1, 1/4]
      [1/4, 4, 1]]

c5 = [[1, 1, 1]
      [1, 1, 1]
      [1, 1, 1]]

c6 = [[1, 6, 4]
      [1/6, 1, 1/3]
      [1/4, 3, 1]]

c7 = [[1, 9, 4]
      [1/9, 1, 1/4]
      [1/4, 4, 1]]

c8 = [[1, 1/2, 1/2]
      [2, 1, 1]
      [2, 1, 1]]