Automatic

person 8 adults - work 3 bags - ac_unit A/C 

person 4 adults - work 2 bags - ac_unit A/C 

person 11 adults - work 2 bags - ac_unit A/C 

person 14 adults - work 3 bags - ac_unit A/C 

person 5 adults - work 2 bags - ac_unit A/C 

person 15 adults - work 10 bags - ac_unit A/C