input: 
  def vowelCheck(inputString: str) -> str: 
      """
      Detects the first vowel in the given string and returns it.
      >>> vowelCheck('Hello World')
      'e'
      >>> vowelCheck('Python')
      'o'
      >>> vowelCheck('NvR')
      """
  
output:     vowels = "aeiouAEIOU"
      for char in inputString:
          if char in vowels:
              return char
      return ""