Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/nix/store/63f79wvyjzfsimzk0p9y1d4za0qdp096-python-2.7.18/lib/python2.7/py_compile.py", line 117, in compile
    raise py_exc
py_compile.PyCompileError:   File "/w/foo.py", line 3
    using namespace std;
                  ^
SyntaxError: invalid syntax

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