17db96d56Sopenharmony_ciimport os
27db96d56Sopenharmony_ci
37db96d56Sopenharmony_ciif __name__ == '__main__':
47db96d56Sopenharmony_ci    while True:
57db96d56Sopenharmony_ci        buf = os.read(0, 1024)
67db96d56Sopenharmony_ci        if not buf:
77db96d56Sopenharmony_ci            break
87db96d56Sopenharmony_ci        try:
97db96d56Sopenharmony_ci            os.write(1, b'OUT:'+buf)
107db96d56Sopenharmony_ci        except OSError as ex:
117db96d56Sopenharmony_ci            os.write(2, b'ERR:' + ex.__class__.__name__.encode('ascii'))
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