comefrom: <doocs>0459.Repeated Substring Pattern_1.py
code: def repeatedSubstringPattern( s: str) -> bool:
      return (s + s).index(s, 1) < len(s)
masked: def sample_funcname ( var_0 : str ) -> bool :
      return ( var_0 + var_0 ).index ( var_0 , 1 ) < len ( var_0 )
  