Your first program ever

What was your first program ever? I mean, beyond the hello world and exercises; the first one you came up with yourself?
For me it was a Scheme program that made given text (from file) all upper/lower case. It asked the user for case, then did the converting, but if the user provided anything else than ``up'' or ``down'' as the mode, the program displayed the header that said ``learn to type, faggot'', and then printed an endless sequence of ASCII penises. It was a nice easter egg. Lol, good old days.

My first program was on the BBC Micro, and it would read strings from INPUT statements until you entered a blank one, while writing them to a file. Its companion program read the file and printed out the strings.

My next ones messed around with sound, playing all sort of weird effects using the ENVELOPE and SOUND statements. Then I tried a bit of text mode animation, which culminated in drawing an egg (actually an ellipse) on the screen using SIN and COS functions, though I didn't understand why that worked at the time, filling it in with patterns, cracking it, drawing a small bird next to it and getting the computer to say "Happy Easter" using a speech synth program we bought as an addon.

Good times. Now I write business software all day and it fucking sucks.