def test_equal_1(self):
     self.assertEqual(mxdiflg([
         'hoqq', 'bbllkw', 'oox', 'ejjuyyy', 'plmiis', 'xxxzgpsssa',
         'xxwwkktt', 'znnnnfqknaz', 'qqquuhii', 'dvvvwz'
     ], ['cccooommaaqqoxii', 'gggqaffhhh', 'tttoowwwmmww']), 13)
 def test_equal_1(self):
     self.assertEqual(
         mxdiflg([
             'hoqq', 'bbllkw', 'oox', 'ejjuyyy', 'plmiis', 'xxxzgpsssa',
             'xxwwkktt', 'znnnnfqknaz', 'qqquuhii', 'dvvvwz'
         ], ['cccooommaaqqoxii', 'gggqaffhhh', 'tttoowwwmmww']), 13)
 def test_equal_2(self):
     self.assertEqual(mxdiflg(['abc'], []), -1)
 def test_equal_2(self):
     self.assertEqual(mxdiflg(['abc'], []), -1)