Please post a program written in C

Hello /prog/, how are you today?

Please post a program written in C, so that we all may compile it on our computers and share in the enjoyment of your program.

>>21
These are my utility headers where i dump common macros and functions. Click " 01-Void.h headers.txt" and then "Download gist"
Unzip to same directory as the C file, use c.bat to compile or copy its switches and manually paste into console.