C11112331312111112111133133313331333132212111133133313113313331333133313211   >>    C1111233131211111211113313331333133313221211113313331311331333133313331321   <<    C11112331312111112111133133313331333132212111133133313113313331333133313213   >>      C11112331312111112111133133313331333132212111133133313113313331333133313212   >>