C11112331312111112111133133313331333133313331333133313331333131133132221211   >>    C1111233131211111211113313331333133313331333133313331333133313113313222121   <<    C11112331312111112111133133313331333133313331333133313331333131133132221213   >>      C11112331312111112111133133313331333133313331333133313331333131133132221212   >>