C22121232133313231322331322331313231313231323132313113313231333133313122121111   >>    C2212123213331323132233132233131323131323132313231311331323133313331312212111   <<    C22121232133313231322331322331313231313231323132313113313231333133313122121113   >>      C22121232133313231322331322331313231313231323132313113313231333133313122121112   >>