C31231211111133131211113313331333133313332233133313331333222313223331   >>    C3123121111113313121111331333133313331333223313331333133322231322333   <<    C31231211111133131211113313331333133313332233133313331333222313223333   >>      C31231211111133131211113313331333133313332233133313331333222313223332   >>