comefrom: <qiyuangong>258_Add_Digits_1.py
code: def addDigits( num):
      if num < 10:
          return num
      return num - ((num - 1) / 9) * 9
masked: def sample_funcname ( var_0 ) :
      if var_0 < 10 :
          return var_0
      return var_0 - ( ( var_0 - 1 ) / 9 ) * 9
  