comefrom: <doocs>1961.Check If String Is a Prefix of Array_1.py
code: def isPrefixString( s: str, words: List[str]) -> bool:
      t = 0
      for i, w in enumerate(words):
          t += len(w)
          if len(s) == t:
              return ''.join(words[: i + 1]) == s
      return False
masked: def sample_funcname ( var_0 : str , var_2 : List [ str ] ) -> bool :
      var_6 = 0
      for var_8 , var_9 in enumerate ( var_2 ) :
          var_6 += len ( var_9 )
          if len ( var_0 ) == var_6 :
              return ''.join ( var_2 [ : var_8 + 1 ] ) == var_0
      return False
  