comefrom: <garvit244>1029_1.py
code: def twoCitySchedCost( costs):
      result = 0
      costs = sorted(costs, key=lambda x : x[0] - x[1])
      for index in range(len(costs)):
          if index < len(costs)//2:
              result += costs[index][0]
          else:
              result += costs[index][1]
      return result
masked: def sample_funcname ( var_0 ) :
      var_2 = 0
      var_0 = sorted ( var_0 , var_4 = lambda var_5 : var_5 [ 0 ] - var_5 [ 1 ] )
      for var_9 in range ( len ( var_0 ) ) :
          if var_9 < len ( var_0 ) // 2 :
              var_2 += var_0 [ var_9 ] [ 0 ]
          else :
              var_2 += var_0 [ var_9 ] [ 1 ]
      return var_2
  