How to prove that you are illiterate?

Known: I have no inkblot on my chest

Prove that I am illiterate

Solution: Because I have no inkblot on my chest with known conditions, I can't read and write; 2. Can't recognize the conformity of modern society; 3. Can't use computers for learning, communication and management.

According to the degree of illiteracy, I can read and recognize social conformity, but I can't use computers well, so the degree of illiteracy is light.

to sum up, I am slightly illiterate.