C31231211111133131211113313331333133313332233133313331333222313232231   >>    C3123121111113313121111331333133313331333223313331333133322231323223   <<    C31231211111133131211113313331333133313332233133313331333222313232233   >>      C31231211111133131211113313331333133313332233133313331333222313232232   >>