A double quarter pounder with cheese from McDonald's has 873 Calories. Suppose a person climbing a flight of stairs burns 1,959 J for every flight they climb. Also take their basal metabolic rate, i.e. the rate at which we burn energy just sitting still, to be 144 J/s. If it takes 31 s to climb each flight, how many flights of stairs will it take for to completely burn the Calories from the cheeseburger? Round up to the next integer number of flights.