C31231211111133131211113313331333133313332233132313331311222122331   >>    C3123121111113313121111331333133313331333223313231333131122212233   <<    C31231211111133131211113313331333133313332233132313331311222122333   >>      C31231211111133131211113313331333133313332233132313331311222122332   >>