C111123313121111121111331333133313331331121133133313113313232311   >>    C11112331312111112111133133313331333133112113313331311331323231   <<    C111123313121111121111331333133313331331121133133313113313232313   >>      C111123313121111121111331333133313331331121133133313113313232312   >>