fn main() {
    let n = input_line::<u32>()[0];
    let mut v = Vec::new();

    for _i in 0..n {
        v.push(input_line::<u32>());
    }

    for i in 0..n as usize {
        v[i].remove(0);
        v[i].sort_by(|a, b| b.cmp(a));
        println!(
            "{}",
            v[i].iter()
                .map(|x| x.to_string())
                .collect::<Vec<String>>()
                .join(" ")
        );
    }
}

fn input_line<T: std::str::FromStr>() -> Vec<T> {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}