use std::thread::panicking;

fn main() {
    let t = getline().parse::<usize>().unwrap();

    for _ in 0..t {
        let n = getline().parse::<i64>().unwrap();
        let mut f: i64 = 1;
        while f < n + 1 {
            f *= 10;
        }
        f *= 100;
        let m = f - (n + 1);
        println!("{}", m);
    }
}

fn getline() -> String {
    let mut __ret = String::new();
    std::io::stdin().read_line(&mut __ret).ok();
    __ret.trim().to_string()
}