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A factory that makes statuettes is trying to maximize its income. Their two primary products are the Venus and David statuettes. Each Venus requires 12 minutes of machine time to rough cut the shape and 40 minutes of artist time to finish the details. The David requires 18 minutes on the machines and 20 minutes with the artist's hand. The factory is limited each day to 216 minutes of machine time and 400 minutes of artist time. Both use 52 kilograms of stone, and the factory has 676 kilograms of stone available per day. If each Venus brings in a profit of seventy-two dollars, and each David brings in fifty-three dollars, how many statuettes of each type should the factory make each day? Constraints: 12V + 18D