This is the ??? programming language. Have you ever been writing a play, essay, or other work of literature and thought to yourself, "Man, wouldn't it be great if I could embed a program in this using punctuation?" Well now you can. ??? is a trivial Brainfuck substitution, meaning that a trivial replacement of operators will result in an equivalent BF program. Unsurprisingly, this means that ??? works the same way as BF: It operates on an array of memory cells (also called the tape), each initially set to 0, and has a pointer initially pointing to the first memory cell. It also means that it's a Turing complete language.