this program simulates a race between 1 to 8 turtles. They start with the same speed and after that for every frame there is a 20 chance for any of them to change their speed. When changing, the speed cand increase or decrease with 1/3 of current speed (random).-this program simulates a race between 1 to 8 turtles. They start with the same speed and after that for every frame there is a 20　chance for any of them to change their speed. When changing, the speed cand increase or decrease with 1/3 of current speed (random).