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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def make_hash(s, n_bytes):
 """Make the hash from a matches key."""

    raw_h = int(md5(s.encode('utf-8')).hexdigest()[:n_bytes], 16)
    # Make it a signed int.
    return 16**n_bytes//2 - raw_h