You don't have to do this all the time. So we have, out of the fair coins in white, one, two, three, four, four, five fair coins. And we have three unfair coins. One, two, three, and this whole thing is my bag right over here. That is my bag of coins. If I were to, when I take my hand in, if I were to take any of these white coins, there's a 50% chance that it gets heads on any flip. The odds of getting two heads in a row would be 50% times 50% for these white coins.