def test_true(self):
self.assertTrue(solution("112358"))
self.assertTrue(solution("122436"))
self.assertTrue(solution("1299111210"))
self.assertTrue(solution("112112224"))
def test_false(self):
self.assertFalse(solution("234526"))
self.assertFalse(solution("3567"))
self.assertFalse(solution("47456"))
self.assertFalse(solution("112354"))
