Scroll down to see how it works. If you'd rather solve the problem yourself, don't scroll. How it works (this is a spoiler): ========================================= We start with a list called "numbers" we delete everything in it and then add 1 and 2. From there, we continually add the next fibonacci numbers by adding together the last to items on the list and then appending that number on the end of the list. As soon as we add a number greater than four million, we remove that last number and move on to the next step. The second step is to go through each number in the list (using a variable called i to iterate over it). Whenever we come across an even number, we add that to the sum (which, of course, started at 0). For clarity (but no additionally functionality) we also add the even number to the "evens" list. The result is a variable called "sum" with our needed answer.
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