C111112111133131121133133313331333133313331323133313331333133313113313123121321   >>    C11111211113313112113313331333133313331333132313331333133313331311331312312132   <<    C111112111133131121133133313331333133313331323133313331333133313113313123121323   >>      C111112111133131121133133313331333133313331323133313331333133313113313123121322   >>