input: def vowelCheck(inputString: str) -> str:
      """ Given a string, detect the first vowel found in the string.
      >>> vowelCheck("Hello World")
      'e'
      >>> vowelCheck("Python Programming")
      'o'
      """
      vowels = ['a','e','i','o','u','A','E','I','O','U'] 
      for x in inputString: 
          if x in vowels: 
              return x
output:     return ''