C22121232133313231322331322331313231313231323132313113313231333133313113121221   >>    C2212123213331323132233132233131323131323132313231311331323133313331311312122   <<    C22121232133313231322331322331313231313231323132313113313231333133313113121223   >>      C22121232133313231322331322331313231313231323132313113313231333133313113121222   >>