C11112331312111112111133133313331333133313331333133313331211113313111321   >>    C1111233131211111211113313331333133313331333133313331333121111331311132   <<    C11112331312111112111133133313331333133313331333133313331211113313111323   >>      C11112331312111112111133133313331333133313331333133313331211113313111322   >>