As a kid I would travel throughout the city and spend my bus fare at the local arcades. For all of you too young to know what that is..... it would be many video game machines in a building and they charged 25 cents a game. One of my favorite games was Space Invaders. This will be your next Tech task.
Note:
Please put numbers in order like 1, 2, 3, 0, 4, and d until each number are done doing their job.
Letter "d" is for clear the pen draw.
0 is for going back at the corner.