Please provide the whole integer program model

Exercise 2. The owner of a big motor company wants to build k = 10 new factories in different areas. All factories make the same product. The owner has n = 15 customers. Customer i demands d units of the product. The operating cost of the factory j is f; > 0 and the maximum number of units it can make is M; . The cost of delivering 1 unit from factory i to customer j Where should the owner build his new factories in order to minimize the delivery cost? Formulate the above problem as an integer program. is cij