Was quite confused by this one: https://github.com/ioccc-src/winner/blob/master/2024/cable2/...
The "salmon" string is mostly unicode TAG characters[1] which contains the printed string followed by 2 En Quad[2], which not so obviously has the effect that `putchar` returns 0 when given as it's argument. Then the defines aren't what they seem, and the body of main is never executed because it's surrounded by a while loop where the condition is 0 (due to putchar() with en quad).