Write a script, program or function which takes one input of type string and outputs or returns some sort of indication wether the input string was 'hi whats up' (without the apostrophes) or not.
You can for example return true if it was and false if it wasn't. Or print something to the screen, like 1 or 0.
It just has to be consistent: whenever you run the function with parameter/input 'hi whats up' the same output/return should emerge (so don't make it random) and whenever the input is something else, the other possible outcome is expected (it has to be always the same, whatever the input was!). In conclusion, your function/script can only have in total 2 different possible outcomes.
The catch is, your entire code must not contain any of these characters: h, i, w, a, t, s, u, p
Code golf: shortest code in bytes wins.