C3123121111113313121111331333133313331211113313331333133313331322331312221   >>    C312312111111331312111133133313331333121111331333133313331333132233131222   <<    C3123121111113313121111331333133313331211113313331333133313331322331312223   >>      C3123121111113313121111331333133313331211113313331333133313331322331312222   >>