Problem 3 (10 pts) Consider a seller who sells m different products. For product j, there are B 1 units in inventory. There are 11. customers, each customer 1! is interested in buying a bundle of the product Si, Where St- Q {1,771} and is willing to pay a price v1- for it. For each customer. the seller can only decide to accept his entire request Si or reject him. The objective of the seller is to maximize the revenue. (a). Formulate this problem as an integer program