C31231211111133131211113313331333133313332233132313331311331323223321   >>    C3123121111113313121111331333133313331333223313231333131133132322332   <<    C31231211111133131211113313331333133313332233132313331311331323223323   >>      C31231211111133131211113313331333133313332233132313331311331323223322   >>