C11112331312111112111133133313331333132323213311331323133313113313221313311   >>    C1111233131211111211113313331333133313232321331133132313331311331322131331   <<    C11112331312111112111133133313331333132323213311331323133313113313221313313   >>      C11112331312111112111133133313331333132323213311331323133313113313221313312   >>