A Businessman Traveling in the Second Dimension

"The green caterpillars are on sale for cheap! Not 999, not 99, just 9999!" Don't miss it if you pass by! Song Zhong sat on the roadside and kept shouting. "Hey! Boy!" Suddenly, a big man next to him spoke to Song Zhong. Song Zhong was a little nervous. Could this guy be from the Rockets? "Big... Brother, this is protection money." Song Zhi gingerly took out 200 yuan from his pocket. "How much does it cost to protect my sister? Do you know that you can encounter green caterpillars just by walking a few steps in the forest in front of you? If you still sell them for such a high price, who are you planning to sell them to?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.