What's the longest piece of literature (song, sentence, story, etc.) you've evr seen using only numbers and letters of the alphabet (Other than the alphabet song!)?

Here’s an example of what I mean. It’s also my answer to the question:

I M 4 U, S I M, S I M,
N I 1 2 B 4 U 4 F R
U R X T C, S U R, S U R,
U N I L B S 1 4 F R, N F R, N F R.

I N I R 1,
U N I R 2,
S E Z 2 C, B B,
U N I C I 2 I O….

I M 4 U, S I M, S I M,
N I 1 2 B 4 U 4 F R

Here’s an interpretation:

I M 4 U, S I M, S I M,
I am for you, yes I am, yes I am,

N I 1 2 B 4 U 4 F R
An(d) I want to be for you forever.

etc., etc.