You are the Directory of Security in a world famous Museum of Fine Arts. Since the museum is being renovated, it is particularly vulnerable to burglars specializing in theft of rare and precious objects. The museum comprises 3 levels, 81 rooms, 6 corridors and 4 elevators. The building complex can be viewed through any of the three monitors in your office, using the 91 cameras installed throughout the complex. Your salary depends on your success at preventing the theft of the museums's priceless treasures. Varying salary levels increase the difficulty of your task. You direct the staff of security guards and give them tasks to catch the thief or thieves.