Click the green flag to reset everything, then click on one of the buttons to start adding to the list. After it is done adding, click Scan, and type the number you want to find on the list (in between 0 and 500). It will say if the number is found or not. the number will be marked with an arrow beside it (<===) and it will tell you what place on the list your number is.
I got this idea before I went to sleep one night, and I pieced together some code the next day.
