C312312111133131212111133131133133313331323223313231311331323131223321   >>    C31231211113313121211113313113313331333132322331323131133132313122332   <<    C312312111133131212111133131133133313331323223313231311331323131223323   >>      C312312111133131212111133131133133313331323223313231311331323131223322   >>