comefrom: <doocs>0500.Keyboard Row_1.py
code: def findWords( words: List[str]) -> List[str]:
      s1 = set('qwertyuiop')
      s2 = set('asdfghjkl')
      s3 = set('zxcvbnm')
      res = []
      for word in words:
          t = set(word.lower())
          if t <= s1 or t <= s2 or t <= s3:
              res.append(word)
      return res
masked: def sample_funcname ( var_0 : List [ str ] ) -> List [ str ] :
      var_5 = set ( 'qwertyuiop' )
      var_7 = set ( 'asdfghjkl' )
      var_9 = set ( 'zxcvbnm' )
      var_10 = [ ]
      for var_11 in var_0 :
          var_13 = set ( var_11.lower ( ) )
          if var_13 <= var_5 or var_13 <= var_7 or var_13 <= var_9 :
              var_10.append ( var_11 )
      return var_10
  