C31231211111133131211113313331333133313332233132313331313331323321   >>    C3123121111113313121111331333133313331333223313231333131333132332   <<    C31231211111133131211113313331333133313332233132313331313331323323   >>      C31231211111133131211113313331333133313332233132313331313331323322   >>