C11112331312111112111133133313331333132323213331333131113113313332321   >>    C1111233131211111211113313331333133313232321333133313111311331333232   <<    C11112331312111112111133133313331333132323213331333131113113313332323   >>      C11112331312111112111133133313331333132323213331333131113113313332322   >>