Ram Roy's firm has developed the following supply, demand, cost, and inventory data.

Supply Available

Period Regular Time Overtime Subcontract Demand Forecast

1 40 15 10 50

2 35 15 10 65

3 40 15 10 55

Initial inventory	30 units
Regular-time cost per unit	$100
Overtime cost per unit	$160
Subcontract cost per unit	$200
Carrying cost per unit per month	$6

Assume that the initial inventory has no holding cost in the first period and backorders are not permitted.

Allocating production capacity to meet demand at a minimum cost using the transportation method, the total cost is

$?