C312312111133131212111133133313231333131121211113313113313232212111133132323221   >>    C31231211113313121211113313331323133313112121111331311331323221211113313232322   <<    C312312111133131212111133133313231333131121211113313113313232212111133132323223   >>      C312312111133131212111133133313231333131121211113313113313232212111133132323222   >>