/*
 _____ _             _              _           _
|_   _| |__   ___   / \   _ __  ___| |__  _   _| |
  | | | '_ \ / _ \ / _ \ | '_ \/ __| '_ \| | | | |
  | | | | | |  __// ___ \| | | \__ \ | | | |_| | |
  |_| |_| |_|\___/_/   \_\_| |_|___/_| |_|\__,_|_|

*/
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ll          long long
#define pb          push_back
#define ppb         pop_back
#define	endl		'\n'
#define mii         map<ll,ll>
#define msi         map<string,ll>
#define mis         map<ll, string>
#define rep(i,a,b)    for(ll i=a;i<b;i++)
#define repr(i,a,b) for(ll i=b-1;i>=a;i--)
#define trav(a, x) 	for(auto& a : x)
#define pii         pair<ll,ll>
#define vi          vector<ll>
#define vii         vector<pair<ll, ll>>
#define vs          vector<string>
#define all(a)      (a).begin(),(a).end()
#define F           first
#define S           second
#define sz(x)       (ll)x.size()
#define hell        1000000007
#define lbnd        lower_bound
#define ubnd        upper_bound
#define max(a,b)	(a>b?a:b)
#define min(a,b)	(a<b?a:b)

/*	For Debugging	*/
#define DEBUG 		cerr<<"\n>>>I'm Here<<<\n"<<endl;
#define display(x) trav(a,x) cout<<a<<" ";cout<<endl;
#define what_iss(x)  cerr << #x << " = " << x << endl;
#define what_is(x)  cerr << #x << " = " << x << " ";

std::mt19937_64 rng(std::chrono::steady_clock::now().time_since_epoch().count());
#define ordered_set tree<ll, null_type,less<ll>, rb_tree_tag,tree_order_statistics_node_update>
#define TIME        cerr << "\nTime elapsed: " << setprecision(5) <<1000.0 * clock() / CLOCKS_PER_SEC << "ms\n";
#define DECIMAL(n)  cout << fixed ; cout << setprecision(n);
#define FAST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace __gnu_pbds;
using namespace std;
#define PI 3.141592653589793
#define N  100005

void solve()
{
	ll n;
	cin >> n;
	vector<vi> v(n,vi(n));
	rep(i,0,n) {
		rep(j,0,n) {
			cin >> v[i][j];
		}
	}
	vector<vi> tmp(n,vi(n,0));
	map<ll,set<ll>> mar[n],mac[n];
	rep(i,0,n) {
		rep(j,0,n) {
			mar[i][v[i][j]].insert(j);
		}
		trav(j,mar[i]) {
			if(sz(j.S)>1) {
				trav(k,j.S) {
					tmp[i][k]++;
				}
			}
		}
	}
	rep(i,0,n) {
		rep(j,0,n) {
			mac[i][v[j][i]].insert(j);
		}
		trav(j,mac[i]) {
			if(sz(j.S)>1) {
				trav(k,j.S) {
					tmp[k][i]++;
				}
			}
		}
	}
	ll cnt=0;

	rep(i,0,n) {
		rep(j,0,n) {
			if(tmp[i][j]>1) {
				cnt++;
				mar[i][v[i][j]].erase(j);
				mac[j][v[i][j]].erase(i);
				tmp[i][j] = 0;
				if(sz(mar[i][v[i][j]])==1) {
					tmp[i][*mar[i][v[i][j]].begin()] = 0;
				}
				if(sz(mac[j][v[i][j]])==1) {
					tmp[*mac[j][v[i][j]].begin()][j] = 0;
				}
			}
		}
	}

	rep(i,0,n) {
		rep(j,0,n) {
			if(tmp[i][j]>0) {
				cnt++;
				mar[i][v[i][j]].erase(j);
				mac[j][v[i][j]].erase(i);
				tmp[i][j] = 0;
				if(sz(mar[i][v[i][j]])==1) {
					tmp[i][*mar[i][v[i][j]].begin()] = 0;
				}
				if(sz(mac[j][v[i][j]])==1) {
					tmp[*mac[j][v[i][j]].begin()][j] = 0;
				}
			}
		}
	}

	cout << cnt << endl;
	return;
}
int main()
{
	FAST
	int TESTS=1;
	cin>>TESTS;
	rep(i,0,TESTS)
    {
        // cout<<"Case #"<<i+1<<": ";
        solve();
    }
	TIME
	return 0;
}