use std::io::*;

fn main() {
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();

    for _ in 0..n {
        let d: usize = itr.next().unwrap().parse().unwrap();
 
        if d == 1 { println!("10"); }
        else { println!("9{}", "0".repeat(d - 1)); }
    }
}