Not sure what the profit is

1. Conigan Box Company produces cardboard boxes that are sold in bundles of 1000 boxes. The market is highly competitive, with boxes currently selling for $50 per thousand. Conigan's total cost function is TC - 3,000,000 #0.0010? where O is measured in thousand box bundles per year. At what level of output should Conigan produce in the short run? What is the level of profit