Prompt:
A manufacturer produces two types of products, A and B. Each unit of A requires 2 hours of labor and 3 units of raw material, while each unit of B requires 4 hours of labor and 2 units of raw material. If the manufacturer has 100 hours of labor and 90 units of raw material available, how many units of each product can they produce to maximize profit, given that the profit for A is $30 per unit and for B is $50 per unit?