C3123121111331312121111331333133313331333121333132233131121132211   >>    C312312111133131212111133133313331333133312133313223313112113221   <<    C3123121111331312121111331333133313331333121333132233131121132213   >>      C3123121111331312121111331333133313331333121333132233131121132212   >>