For the month, the amount of need for a part supplied by an enterprise is 120, 150, 100, 100, 140, 160, 120, and the monthly stock holding cost is 4 TL. Preparation cost is 2000, 1000, 800, 1500, 2000, respectively. According to orders placed at the beginning of the period, find the monthly order amounts and total cost according to the silver - meal intuitive.