阿碇

There can't possible be a way, the reason being the following:
& L, w- ^' K. P. Reveryday the person being picked is randomly generated, that means for a person to have 99.99% chance of being picked that takes over 600 days0 o/ n. e1 \: T
lets just assume only 2 person in the entire group is the unlucky one, and that would case over 4 years of time just to get everybody out in the yard once
2 }& \& q) j4 M) w: L8 R# a6 E8 ltvb now,tvbnow,bttvbany solution proposed would be statistically impossible.