def test_02(self):
num = 2111
self.assertEqual(5, kaprekars_constant(num))
def test_01(self):
num = 6174
self.assertEqual(1, kaprekars_constant(num))
def test_04(self):
num = 3524
self.assertEqual(3, kaprekars_constant(num))
def test_05(self):
num = 9237
self.assertEqual(3, kaprekars_constant(num))
def test_03(self):
num = 9831
self.assertEqual(7, kaprekars_constant(num))