mod util {
    pub trait Join {
        fn join(self, sep: &str) -> String;
    }

    impl<T, I> Join for I
    where
        I: Iterator<Item = T>,
        T: std::fmt::Display,
    {
        fn join(self, sep: &str) -> String {
            let mut s = String::new();
            use std::fmt::*;
            for (i, v) in self.enumerate() {
                if i > 0 {
                    write!(&mut s, "{}", sep).ok();
                }
                write!(&mut s, "{}", v).ok();
            }
            s
        }
    }
}
// 1-indexedなBIT
// 座標xへの加算、[1,x]の和, ([1,x]の和)>=s となる最小のxの探索
// ---------- begin fenwick tree ----------
pub struct Fenwick<T> {
    zero: T,
    a: Box<[T]>,
}

impl<T> Fenwick<T>
where
    T: Copy + std::ops::Add<Output = T>,
{
    pub fn new(size: usize, zero: T) -> Fenwick<T> {
        Fenwick {
            zero: zero,
            a: vec![zero; size + 1].into_boxed_slice(),
        }
    }
    pub fn init(&mut self) {
        for a in self.a.iter_mut() {
            *a = self.zero;
        }
    }
    pub fn add(&mut self, mut x: usize, v: T) {
        assert!(x > 0);
        while let Some(a) = self.a.get_mut(x) {
            *a = *a + v;
            x += x & (!x + 1);
        }
    }
    pub fn sum(&self, mut x: usize) -> T {
        assert!(x < self.a.len());
        let mut res = self.zero;
        while x > 0 {
            res = res + self.a[x];
            x -= x & (!x + 1);
        }
        res
    }
}

impl<T> Fenwick<T>
where
    T: Copy + std::ops::Add<Output = T> + PartialOrd,
{
    pub fn search(&self, s: T) -> usize {
        debug_assert!(self.sum(self.a.len() - 1) >= s);
        let mut k = 1;
        while 2 * k < self.a.len() {
            k *= 2;
        }
        let mut x = 0;
        let mut w = self.zero;
        while k > 0 {
            self.a.get(x + k).map(|a| {
                if w + *a < s {
                    w = w + *a;
                    x += k;
                }
            });
            k >>= 1;
        }
        x + 1
    }
}
// ---------- end fenwick tree ----------
// ---------- begin scannner ----------
#[allow(dead_code)]
mod scanner {
    use std::str::FromStr;
    pub struct Scanner<'a> {
        it: std::str::SplitWhitespace<'a>,
    }
    impl<'a> Scanner<'a> {
        pub fn new(s: &'a String) -> Scanner<'a> {
            Scanner {
                it: s.split_whitespace(),
            }
        }
        pub fn next<T: FromStr>(&mut self) -> T {
            self.it.next().unwrap().parse::<T>().ok().unwrap()
        }
        pub fn next_bytes(&mut self) -> Vec<u8> {
            self.it.next().unwrap().bytes().collect()
        }
        pub fn next_chars(&mut self) -> Vec<char> {
            self.it.next().unwrap().chars().collect()
        }
        pub fn next_vec<T: FromStr>(&mut self, len: usize) -> Vec<T> {
            (0..len).map(|_| self.next()).collect()
        }
    }
}
// ---------- end scannner ----------

use std::io::Write;
use std::collections::*;

type Map<K, V> = BTreeMap<K, V>;
type Set<T> = BTreeSet<T>;
type Deque<T> = VecDeque<T>;

fn main() {
    use std::io::Read;
    let mut s = String::new();
    std::io::stdin().read_to_string(&mut s).unwrap();
    let mut sc = scanner::Scanner::new(&s);
    let out = std::io::stdout();
    let mut out = std::io::BufWriter::new(out.lock());
    run(&mut sc, &mut out);
}

fn run<W: Write>(sc: &mut scanner::Scanner, out: &mut std::io::BufWriter<W>) {
    let t: u32 = sc.next();
    for _ in 0..t {
        let n: usize = sc.next();
        let p = sc.next_vec::<usize>(n);
        let mut deq = Deque::new();
        deq.push_back(p[0]);
        let mut bit = Fenwick::new(n, 0);
        bit.add(p[0], 1);
        let mut inv = 0usize;
        for (i, p) in p.iter().enumerate().skip(1) {
            let c = bit.sum(*p);
            bit.add(*p, 1);
            let mut front = c < i - c;
            front |= c == i - c && *p < deq[0];
            if front {
                inv += c;
                deq.push_front(*p);
            } else {
                inv += i - c;
                deq.push_back(*p);
            }
        }
        writeln!(out, "{}", inv).ok();
        use util::*;
        writeln!(out, "{}", deq.iter().join(" ")).ok();
    }
}