C11112331312111112111133133313331333132323133313331333133313113121123321   >>    C1111233131211111211113313331333133313232313331333133313331311312112332   <<    C11112331312111112111133133313331333132323133313331333133313113121123323   >>      C11112331312111112111133133313331333132323133313331333133313113121123322   >>