C151 Half of a scrap marker

"Five hundred thousand. I bid five hundred thousand and Luo Minhao wins."

"One million. I'll bet one million on Luo Minhao winning."

"Eight hundred thousand. I bid eight hundred thousand to bet on Luo Minhao winning."

"Five million. I bet five million on Luo Minhao winning."

"..."

With the first person betting, a second person betting quickly