Spring, Incorporated manufactures two products. It currently has $1,000$ hours of direct labor and $2,080$ hours of machine time available per month. The following table lists the contribution margin, labor and machine time requirements, and demand for each product:

$\backslash$table$[[$Unit contribution margin,Product $A,$Product B$],[$Demand$,1,040$ units,$2,080$ units$],[$Labor time,$\frac{3}{4}$ hour,$1$ hour$],[$Machine time,$1$ hour,$\frac{1}{2}$ hour$]]$

How much of each product should Spring manufacture per month?