C111112111133131121133133313331333133313331323133313331333133313112112123131   >>    C11111211113313112113313331333133313331333132313331333133313331311211212313   <<    C111112111133131121133133313331333133313331323133313331333133313112112123133   >>      C111112111133131121133133313331333133313331323133313331333133313112112123132   >>