C312312111133131212111133131133133313331311331333131333132313332233133312233121   >>    C31231211113313121211113313113313331333131133133313133313231333223313331223312   <<    C312312111133131212111133131133133313331311331333131333132313332233133312233123   >>      C312312111133131212111133131133133313331311331333131333132313332233133312233122   >>