Just to make this code better, I've decided to take a look at it. Never ever ever ever ever ever ever ever use Gotos. I know they exist, but it's bad coding practice. Trust me, it just is. What saddens me, is that it seems you have come up with a convoluted way of prevent a memory leak, which while it may work, makes your code terribly unreadable. Also, the sub("NopeLeap" part is creative, but you should have a 4 as the last argument, and not a 1. See, the code is shorter and more readable. I just wish Ti-basic had a Do-While loop.
Disp “WHAT WERE YOU”,“THINKING?”, “YOU CAN’T HAVE A”, “YEAR LESS THAN 1!”,“TRY AGAIN