C111123313121111121111331333133313331333131233133313113313331333112323211   >>    C11112331312111112111133133313331333133313123313331311331333133311232321   <<    C111123313121111121111331333133313331333131233133313113313331333112323213   >>      C111123313121111121111331333133313331333131233133313113313331333112323212   >>