comefrom: <doocs>0483.Smallest Good Base_1.py
code: def cal(k, m):
      p = s = 1
      for i in range(m):
          p *= k
          s += p
      return s
masked: def sample_funcname ( var_0 , var_1 ) :
      var_4 = var_2 = 1
      for var_6 in range ( var_1 ) :
          var_4 *= var_0
          var_2 += var_4
      return var_2
  