The program screen should include at least a birthday cake and candles. The allowable age range for a person to enter is 0 – 122, as 122 is the oldest confirmed age of a human, namely Jeanne Calment (Links to an external site.)Links to an external site. — so the maximum number of candles required is seven. Lastly, the easiest way to have a candle lit/unlit is to have two different "costumes" — one corresponding to each, and select the one to display based on the binary representation of the desired age. The number of candles should change depending on the age. So, a one-year-old would have one candle, a 30-year-old would have five, and an 83-year-old would have seven, because the next highest power of 2 in each case is 1, 5, and 7, respectively.