use std::io::stdin;

fn main() {
    let mut s = String::new();
    stdin().read_line(&mut s).ok();
    let n: u8 = s.trim().parse().unwrap();
    for _ in 0..n {
        s.clear();
        stdin().read_line(&mut s).ok();
        let l: Vec<u16> = s.split_whitespace().flat_map(str::parse).collect();
        let mut l = l[1..].to_vec();
        l.sort_by(|a, b| b.cmp(a));
        let ans = l
            .iter()
            .map(|x| x.to_string())
            .collect::<Vec<String>>()
            .join(" ");
        println!("{}", ans);
    }
}