C111112111133131121133133313331333133313331323133313331333131211113311331123311   >>    C11111211113313112113313331333133313331333132313331333133313121111331133112331   <<    C111112111133131121133133313331333133313331323133313331333131211113311331123313   >>      C111112111133131121133133313331333133313331323133313331333131211113311331123312   >>