C111123313121111121111331333133313331333112221211111133132332322133313111   >>    C11112331312111112111133133313331333133311222121111113313233232213331311   <<    C111123313121111121111331333133313331333112221211111133132332322133313113   >>      C111123313121111121111331333133313331333112221211111133132332322133313112   >>