C11112331312111112111133133313331333132323213331333133313332112112321   >>    C1111233131211111211113313331333133313232321333133313331333211211232   <<    C11112331312111112111133133313331333132323213331333133313332112112323   >>      C11112331312111112111133133313331333132323213331333133313332112112322   >>