def x(self):
     _ = skip.mro(self, B, D)
     return _.x()
 def x(self):
     _ = skip.mro(self, B, D)
     return _.x()
 def y(self):
     print('Enter Y')
     skip.mro(self, C).y()
     print('Exit Y')
 def x(self):
     print('Enter X')
     skip.mro(self, C).x()
     print('Exit X')
 def y(self):
     print('Enter Y')
     skip.mro(self, C).y()
     print('Exit Y')
 def x(self):
     print('Enter X')
     skip.mro(self, C).x()
     print('Exit X')