def test_hackerrank_sample5(self):
"""Description
"""
result = bigger_is_greater('dkhc')
self.assertEquals(result, 'hcdk')
def test_hackerrank_sample2(self):
"""Description
"""
result = bigger_is_greater('zz')
self.assertEquals(result, 'no answer')
def test_hackerrank_sample3(self):
"""Description
"""
result = bigger_is_greater('hefg')
self.assertEquals(result, 'hegf')
def test_hackerrank_sample1(self):
"""Description
"""
result = bigger_is_greater('ab')
self.assertEquals(result, 'ba')