Two 1 man barber shops sit side by side in Dubkirk Square. Each can hold a max of 4 people, and any potential customer who finds a shop full will not wait for a haircut. Barber1 charges $11 per hair cut and takes an avg of 12 min to complete a hair cut. Barber2 charges $5 per haircut and takes an average of 6 min to complete a hair cut. An avg of 10 potential customers per hour arrive at each barber shop. Of course, a potential customer becomes an actual customer only if he finds that the shop is not full. Assuming that inter-arrival times and haircut times are exponential, which barber will earn more money?