NSC.XLS		National Steel Corporation
Production cost (in $1000)
Inventory cost (in $1000)
Total cost (in $1000)
Unit costs:			Jan	Feb	Mar	Apr
Variable production cost ($/ton)			3000	3300	3600	3600
Inventory cost ($/ton per month)			250	250	250	250
			Jan	Feb	Mar	Apr
Beginning Inventory................................			0
Production Level..........................................
Demand.................................................			2300	2000	3100	3000
Ending Inventory.......................................
Inventory >= 0 Constraints..................................
Production <= 3000 Constraints