C111112111133131121133133313331333133313331323133313331333133313112113121233131   >>    C11111211113313112113313331333133313331333132313331333133313331311211312123313   <<    C111112111133131121133133313331333133313331323133313331333133313112113121233133   >>      C111112111133131121133133313331333133313331323133313331333133313112113121233132   >>