use std::{io, io::prelude::*};
#[allow(dead_code)]
fn main() {
println!("OK Your orders please");
let stdin = io::stdin();
let mut lines = stdin.lock().lines();
while let Some(Ok(cmd)) = lines.next() {
match cmd.split(' ').nth(0) {
Some("GETPIN") => {
println!("D abc");
println!("OK");
}
_ => println!("OK"),
}
}
}