Knuth reward check

Twenty years ago, a remarkable letter arrived - a letter from Donald Knuth, the esteemed computer scientist. He confirmed an error I had discovered in one of his books and sent me a coveted check. This letter, part of computer science folklore, is a testament to Knuth's commitment to accuracy. Thousands had reviewed his works, yet I, a relative newcomer, had stumbled upon a typo.

After months of double-checking, I finally alerted Knuth, despite initial dismissal from a university genius. The error was in "Computer Modern Typefaces", a lesser-read volume. It appeared on page one, in the first word, earning me the designation "E1". Knuth's check, however, is now a fantasy certificate from the Bank of San Serriffe, reflecting the value of $2.88, courtesy of an erroneous $1.20.