C11112331312111112111133133313331333132323213331333133313331311212113313222321   >>    C1111233131211111211113313331333133313232321333133313331333131121211331322232   <<    C11112331312111112111133133313331333132323213331333133313331311212113313222323   >>      C11112331312111112111133133313331333132323213331333133313331311212113313222322   >>