Throughout the course of the day, both of you continue to periodically move south towards the bulk of the ice cream buyers, until both of you eventually end up at the center of the beach, back to back, each serving 50% of the ice-cream-hungry beachgoers.
Sepanjang hari itu, kalian berdua terus bergerak ke selatan secara berkala mendekati banyak pembeli es krim, sampai kalian berdua akhirnya berakhir di tengah pantai. berpunggungan, masing-masing melayani 50% pengunjung pantai yang ingin es krim.