C31231211113313121211113313331333133313331213331333133313231123313331333211211   >>    C3123121111331312121111331333133313331333121333133313331323112331333133321121   <<    C31231211113313121211113313331333133313331213331333133313231123313331333211213   >>      C31231211113313121211113313331333133313331213331333133313231123313331333211212   >>