C11112331312111112111133133313331333132323213331333133313133231323321   >>    C1111233131211111211113313331333133313232321333133313331313323132332   <<    C11112331312111112111133133313331333132323213331333133313133231323323   >>      C11112331312111112111133133313331333132323213331333133313133231323322   >>