fn main() {
    let mut xx = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), &mut xx).ok();
    let xx: Vec<usize> = xx.split_whitespace().skip(1).flat_map(str::parse).collect();

    let mut answer = vec![];
    for &n in &xx {
        answer.extend(['9']);
        answer.extend(vec!['0'; n - 1]);
        answer.extend(['\n']);
    }
    let answer: String = answer.iter().collect();

    print!("{answer}");
}