I've looked over the assignment for grains. It seems like it's a very simple exercise to simply double each number. But, I'm sure this is incorrect. I'm not sure what the class I'm looking for is supposed to do? I mean, if I follow the example... square 1: 1 grain square 2: 2 grains square 3: 4 grains square 4: 8 grains ...then I can just use a simple for loop to run through and double the value each time. I know this isn't the purpose of the assignment, but I'm confused as to what they're looking for. Can anyone offer a bit more detail on the desired outcome of this? Thanks.