C111112111133131121133133313331333121111133313331333133311211331333132212231   >>    C11111211113313112113313331333133312111113331333133313331121133133313221223   <<    C111112111133131121133133313331333121111133313331333133311211331333132212233   >>      C111112111133131121133133313331333121111133313331333133311211331333132212232   >>