C11112331312111112111133133313331333133313331333133313331211113313231321323331   >>    C1111233131211111211113313331333133313331333133313331333121111331323132132333   <<    C11112331312111112111133133313331333133313331333133313331211113313231321323333   >>      C11112331312111112111133133313331333133313331333133313331211113313231321323332   >>