C111112111133131121133133313331333132313113313331333112211232323213223231   >>    C11111211113313112113313331333133313231311331333133311221123232321322323   <<    C111112111133131121133133313331333132313113313331333112211232323213223233   >>      C111112111133131121133133313331333132313113313331333112211232323213223232   >>