C31231211111133131211113313331333133313332233132313331312111133223311   >>    C3123121111113313121111331333133313331333223313231333131211113322331   <<    C31231211111133131211113313331333133313332233132313331312111133223313   >>      C31231211111133131211113313331333133313332233132313331312111133223312   >>