C312312111133131212111133131133133313331323223313231311331323132211   >>    C31231211113313121211113313113313331333132322331323131133132313221   <<    C312312111133131212111133131133133313331323223313231311331323132213   >>      C312312111133131212111133131133133313331323223313231311331323132212   >>