use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let t: usize = itr.next().unwrap().parse().unwrap();
    let mut out = Vec::new();
    for _ in 0..t {
        let n: usize = itr.next().unwrap().parse().unwrap();
        let mut a: Vec<usize> = (0..n)
            .map(|_| itr.next().unwrap().parse().unwrap())
            .collect();
        a.sort();

        let mut ans = 0;
        let mut used = vec![false; n];
        for i in 0..n {
            for j in i + 1..n {
                for k in j + 1..n {
                    if a[i] != a[j] && a[j] != a[k] && !used[i] && !used[j] && !used[k] {
                        ans += 1;
                        used[i] = true;
                        used[j] = true;
                        used[k] = true;
                    }
                }
            }
        }

        writeln!(out, "{}", ans).ok();
    }
    stdout().write_all(&out).unwrap();
}