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.

A simple message delivery system, with encryption (an algorithm similar to rc4, but broken in a way that made it necessary to brute-force a 16-bit key (generated from the plaintext before encrypting) in addition to knowing the right 256-bit key to decrypt it) and some very ugly hacks to work around limitations of the file locking in QBASIC.