C111123313121111121111331333133313331333132232233133313133311311   >>    C11112331312111112111133133313331333133313223223313331313331131   <<    C111123313121111121111331333133313331333132232233133313133311313   >>      C111123313121111121111331333133313331333132232233133313133311312   >>