Suppose that a final assembly is produced by assembling two components. The first component, component A, is produced in-house and proceeded though three process steps, blanking, forging, and machining, with scrap estimates of 5%, 8%, and 5%, respectively. Two units of component A are used in each final assembly. The second component, component B, is inspected upon arrival; 10% fail inspection. One unit of the purchased component is required for each final assembly. The final assembly process produces 5% scrap. The demand for the spare parts of component A and the final assembly are 500 and 5,000 units, respectively. How many units of input are required for forging to produce component A?