def test_equal_1(self):
     self.assertEqual(stray([1, 1, 2]), 2)
 def test_equal_2(self):
     self.assertEqual(stray([2, 3, 2, 2, 2]), 3)
 def test_equal_4(self):
     self.assertEqual(stray([17, 17, 3, 17, 17, 17, 17]), 3)