#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
using ll=long long;

void IO(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
}

int main(){
  IO();
  ll t;
  cin>>t;
  while(t--){
    ll n;
    cin>>n;
    vector<ll> p(n);
    for(ll i=0;i<n;i++){
      cin>>p[i];
      p[i]--;
    }
    fenwick_tree<ll> bit(n);
    bit.add(p[0],1);
    deque<ll> dq;
    dq.push_back(p[0]);
    ll x=0;
    for(ll i=1;i<n;i++){
      ll vl=bit.sum(0,p[i]);
      ll vr=i-vl;
      if(vl<vr){
        dq.push_front(p[i]);
        x+=vl;
      }else if(vl>vr){
        dq.push_back(p[i]);
        x+=vr;
      }else{
        if(p[i]<dq.front()){
          dq.push_front(p[i]);
          x+=vl;
        }else{
          dq.push_back(p[i]);
          x+=vr;
        }
      }
      bit.add(p[i],1);
    }
    cout<<x<<endl;
    for(ll i=0;i<n;i++){
      cout<<dq[i]+1;
      if(i<n-1){
        cout<<" ";
      }
    }
    cout<<endl;
  }
}