C11112331312111112111133133313331333132323213331333133313332313331323313311   >>    C1111233131211111211113313331333133313232321333133313331333231333132331331   <<    C11112331312111112111133133313331333132323213331333133313332313331323313313   >>      C11112331312111112111133133313331333132323213331333133313332313331323313312   >>