A component used in a manufacturing facility is ordered from an outside supplier. Thetime$-$phased requirements for the component over the next $7$ weeks are $15,20,16,10,2014,$ and $18.$ Current inventory of this item is $8,$ and the ending inventory should be $7.$Assume a holding cost of $$2$ per week and a setup cost of $$40.$

$1)$ Determine the order policy for this item over the next $7$ weeks based on the Silver$-$Mealheuristic.