The Ultimate Challenge

Writa a program in untyped lambda calculus that prints "hello world" to stdout.

A programmer is at home with his wife. His wife asks him:
"Please could you go down to the shops and buy a loaf of bread? Oh, and if they have eggs, buy twelve."
Ten minutes later, he returns with four huge plastic bags - the joke, of course, is that he bought twelve loaves of bread.
Undeterred, his wife says:
"Go back to the shops, and while you're there, buy eggs."
He never returns.

>>43
Thanks xD