C31231211111133131211113313331333133313332233132313331323323132322311   >>    C3123121111113313121111331333133313331333223313231333132332313232231   <<    C31231211111133131211113313331333133313332233132313331323323132322313   >>      C31231211111133131211113313331333133313332233132313331323323132322312   >>