F...............

======================================================================

FAIL: testCmp (tester.ProblemTests)

----------------------------------------------------------------------

Traceback (most recent call last):

  File ".../test.py", line 110, in testCmp

    self.assertTrue(Interval(7, 22) > Interval(8, 22))

AssertionError



----------------------------------------------------------------------

Ran 16 tests in 0.010s



FAILED (failures=1)