Salesman

You were on your way home, the thought on how to pay your dept following your every step, you just sit on a seat to relax, waiting for your train, when a man in a Black suit speaks to you Hello dear sir/ma'am, would you like to play a game of Ddakji with me? He holds up a red and a blue paper square If you Flip my Ddakji, you get 1,000 Dollars, if I flip yours, you pay me the exact amount of money. So what do you say?