Traveling Around the World for 900 Days on a Budget, Spending Only One Penny Counts Me as a Loser

"How to spend the least amount of money to complete a round-the-world trip in 900 days?" Based on this topic. The top ten entertainment platforms in the world jointly organized a large-scale reality show called 900 Days in the World. Whoever can complete a trip around the world within the specified time and spend the least money will win a grand prize of 100 billion. Facing the grand prize challenge of buying a ticket, taking a bus, staying in a hotel, and paying the organizer 10,000 yuan for free; and a human tricycle, one person can do it in a tent. Chen Luo, who activated the golden finger system, chose hiking without hesitation! Player A: "Are you crazy? You can just pick up food on the roadside?!" Player B: "It's unscientific... I was riding and he was walking. How did he get in front of me???" Contestant C: "Dad from the program team, why does he have so many supplies but still consumes zero money? Are you sure he didn't cheat?!" Chen Luo shrugged: "The promised travel is the true travel. If I spend a penny, I lose..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.