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cse160-staff@cs.washington.edu cse160_22au_checkin03 > not_string
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Given a string, return a new string where "not " has been added to the front. However, if the string already begins with "not", return the string unchanged.


not_string('candy') → 'not candy'
not_string('x') → 'not x'
not_string('not bad') → 'not bad'

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def not_string(str):

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Difficulty: 127.0

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