text: # vim: set et sw=4 ts=4 nu fdm=indent:
  # coding: utf8
  
  
  class Couple:
      def __init__(self, index1, index2, J):
          self.index1 = index1
          self.index2 = index2
          self.J = J
  
  class Bridge:
      def __init__(self, index1, index2, width, height, J):
          self.index1 = index1
          self.index2 = index2
          self.width = width
          self.height = height
          self.J = J
  
  
  
  
  
  
  
  
  
  
  
  