C111123313121111121111331333133313331323132333133313331323221333233311   >>    C11112331312111112111133133313331333132313233313331333132322133323331   <<    C111123313121111121111331333133313331323132333133313331323221333233313   >>      C111123313121111121111331333133313331323132333133313331323221333233312   >>