Buy jokes: if you have a joke with a stomachache, come!

There are two super talented young people, both of whom are good at calculating, and neither of them will give up. One day, they went out for a walk together. A saw a pool of shit, and B said, "If you dare to eat shit, I'll give you five thousand dollars." After calculation, B earned 5000 yuan by eating dog shit, B ate dog shit, and A gave him the money. Walking, after a while, B took 5000 yuan and was very unhappy after eating shit. A lost 5000 yuan for nothing, and it's not very tasty. After a while, B saw a pool of shit and said to A, "You eat him and I'll give you five thousand dollars back." After calculation, A thought it was more profitable and ate the shit. A was relieved to get back 5000 yuan. B let him eat the shit back, and his heart will be relieved. After a while, they thought it was wrong. They thought they got nothing, but they ate two beaches of shit for nothing and lay on the ground crying.