Who is free at 4:30 PM?
6 barbers can do Shampoo then, in the shop's own order.
No preference takes the lightest book of the 6 barbers open at 4:30 PM, so the work spreads across the shop instead of piling onto one chair.
6 barbers can do Shampoo then, in the shop's own order.
No preference takes the lightest book of the 6 barbers open at 4:30 PM, so the work spreads across the shop instead of piling onto one chair.