Penguin! Click the easy or hard button. :)
WARNING! HARD LEVEL IS VERY VERY HARD! IF YOU'RE NOT USING A CALCULATOR OR ANY OTHER TYPE OF THING THAT WILL TELL YOU THE ANSWER (which I hope you don't use) YOU WILL PROBABLY GET IT WRONG, UNLESS YOU CAN DO THE MATH ON A PAPER!!!!!!!!!!!!!!!!!!!!!!! Will make medium level.