while on the subway. A salesman sits next to you

"Hello sir. Would you like to play a round ddakji? Here's how it works. You throw your ddakji at my ddakji. If it flips over. I give you 100,000 won. If I flip over yours, you give me the same amount"

He opens his briefcase to reveal a stack of red and blue ddajkis and at least a million won.