#include <bits/stdc++.h>
using namespace std;
#define modulo 1000000007
#define mod(mod_x) ((((long long)mod_x)+modulo)%modulo)
#define Inf 1000000000

int get(vector<pair<int,int>> A){
	int now = -(int)A.size();;
	int score = 0;
	vector<int> add(A.size(),0),del(A.size(),0);
	for(int i=0;i<A.size();i++){
		score += max(A[i].first,A[i].second);
		add[max(0,A[i].first-A[i].second)]++;
		del[min((int)A.size()-1,A[i].first+A[i].second)]++;
	}
	now += add[0];
	now += del[0];

	int ret = score;
	for(int i=1;i<A.size();i++){
		score += now;
		now += add[i];
		now += del[i];
		ret = min(ret,score);
	}
	return ret;
}

int main() {
	
	int N;
	cin>>N;
	
	vector<vector<pair<int,int>>> A(N,vector<pair<int,int>>());
	
	for(int i=0;i<N;i++){
		for(int j=0;j<N;j++){
			int a;
			cin>>a;
			a--;
			A[a].emplace_back(i,j);
		}
	}
	
	int ans = 0;
	for(int i=0;i<N;i++){
		//cout<<get(A[i])<<endl;
		ans += get(A[i]);
	}
	
	cout<<ans<<endl;
	
    return 0;
}