In the letter all that was typed were these numbers
198123198114111854513162 091514169311251521211612 013941497820151410211225 420304152314120208518922 51819201182049779147
When you decipher the numbers, here's what's written
"shawshank redemption pick you up at midnight on july 4 2030 down at the river start digging"
I hope to one day see my friend again. I hope I can get across the border.