A small firm intends to increase the capacity of a bottleneck operation by adding a new machine. Two alternatives, A and B, have been identified, and the associated costs and revenues have been estimated. Annual fixed costs would be $40,000 for A and $30,000 for B; variable costs per unit would be $11 for A and $23 for B; and revenue per unit would be $41. At what volume of output would the two alternatives yield the same profit (or loss)? (Round your answer to a whole number.)