#include <atcoder/all>
using namespace atcoder;
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")

#define rep(i, n) for(ll i = 0; i < n; i++)
#define rep2(i, m, n) for(ll i = m; i <= n; i++)
#define rrep(i, m, n) for(ll i = m; i >= n; i--)
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define MAX(x) *max_element(all(x))
#define MIN(x) *min_element(all(x))
#define SZ(a) ((ll)(a).size())
#define bit(n, k) ((n >> k) & 1)
using namespace std;
using ll = long long;
using P = pair<ll, ll>;
const int dx[4] = { -1, 0, 1, 0};
const int dy[4] = { 0, 1, 0, -1};
const int inf = 1e9 + 7;
const ll infll = 1e18;
//const double pi = acos(-1);
     
using Graph = vector<vector<ll>>;
using REV_PQ = priority_queue<ll, vector<ll>, greater<ll>>;
using PQ = priority_queue<ll>;

const int SIZE = 400010;
ll powll(ll n, ll x) {
    // return n ^ x;
    ll ret = 1;
    rep(i, x) ret *= n;
    return ret;
}
ll ceil(ll x, ll m){
    if(m < 0) x = -x, m = -m;
    
    if(x >= 0) return (x + m - 1) / m;
    else return x / m;
}
ll floor(ll x, ll m){
    if(m < 0) x = -x, m = -m;
    
    if(x >= 0) return x / m;
    else return (x - m + 1) / m;
}
void OutputYesNo(bool val) {
    if (val) cout << "Yes" << endl;
    else cout << "No" << endl;
}
void OutputTakahashiAoki(bool val) {
    if (val) cout << "Takahashi" << endl;
    else cout << "Aoki" << endl;
}
void OutPutInteger(ll x) { cout << x << endl; }
void OutPutString(string x) { cout << x << endl; }

int pop_count(ll n){
    int ret = 0;
    while(n > 0){
        if(n % 2 == 1) ret++;
        n /= 2; 
    }
    return ret; 
}

bool inrange(ll from, ll to, ll val){
    // from <= val <= to であれば、trueを返す

    return from <= val && val <= to;
}

using PAIR_REV_PQ = priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>>;
//typedef atcoder::modint998244353 mint;
//typedef atcoder::modint1000000007 mint;
//typedef modint mint;
//typedef vector<mint> ModintVec;
//typedef vector<Modin

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int t; cin >> t;
    while(t--){
        int n; cin >> n;
        vector<int> p(n);
        rep(i, n){
            cin >> p[i];
            p[i]--;
        }

        ll ans = 0;
        deque<int> res;
        fenwick_tree<ll> ft(n);
        rep(i, n){
            if(ft.sum(0, p[i] + 1) < ft.sum(p[i] + 1, n)){
                res.push_front(p[i]);
                ans += ft.sum(0, p[i] + 1);
            }else{
                res.push_back(p[i]);
                ans += ft.sum(p[i] + 1, n);
            }
            ft.add(p[i], 1);
        }

        cout << ans << endl;
        for(auto v : res) cout << v + 1 << " ";
        cout << endl;
    }
}