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``` - add language identifier to highlight code ```python
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lang-py
(k[0] != v[0])==>num&(k[-1] != v[-1])==>tex...You can test by printing k[0], v[0] and k[-1], v[-1]open("out.csv", "wb") as out_file:?open("out.csv", "w", newline='') as out_file: