A simplification of the Infinite Monkey Theorem, in which the monkey can only type strings with the same number of characters as the target output.
.="=.
A hell of our _/.-.-.\_ _
own creation. ( ( o o ) ) ))
|/ " \| //
.-------. \'---'/ //
_|~~ ~~ |_ /`"""`\\ ((
=(_|_______|_)= / /_,_\ \\ \\
|:::::::::| \_\\_'__/ \ ))
|:::::::[]| /` /`~\ |//
|o=======.| / / \ /
`"""""""""` ,--`,--'\/\ /
'-- "--' '--'
Read more about it here.