C111112111133131121133133313331333133313331323133313331333133313113121322121   >>    C11111211113313112113313331333133313331333132313331333133313331311312132212   <<    C111112111133131121133133313331333133313331323133313331333133313113121322123   >>      C111112111133131121133133313331333133313331323133313331333133313113121322122   >>