You are about to perform a task called the 'Tower of London'. Your goal is to move a pile of disks from their original configuration to the configuration shown on the top of the screen. You can only move one disk at a time, and you cannot move a disk onto a pile that has no more room (indicated by the size of the grey rectangle). To move a disk, click on the pile you want to move a disk off of, and it will move up above the piles. Then, click on another pile, and the disk will move down to that pile. You will have a time limit to finish each problem. Attempt to finish as many problem as possible within the allotted time.