#include"bits/stdc++.h"
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<n;i++)
typedef pair<int, int> P;
vector<P>G[1005];
signed main() {
	cin.tie(0);
	ios::sync_with_stdio(false);

	int n; cin >> n;
	rep(i, n) {
		rep(j, n) {
			int a; cin >> a; a--;
			G[a].push_back(P(i, j));
		}
	}

	int ans = 0;

	rep(i, n) {
		vector<int>p1(n), p2(n);
		rep(j, n) {
			p1[0]++;
			p1[max(0ll, G[i][j].first - G[i][j].second)]--;
			p2[min(n - 1, G[i][j].second + G[i][j].first+1)]++;
			p2[n - 1]--;
		}
		rep(j, n - 1) {
			p1[j + 1] += p1[j];
			p2[j + 1] += p2[j];
		}
		rep(j, n - 1) {
			p2[j + 1] += p2[j];
			p1[n - 2 - j] += p1[n - 1 - j];
		}
		int mn = 1e9, id;
		rep(j, n) {
			if (mn > p1[j] + p2[j]) {
				mn = p1[j] + p2[j];
				id = j;
			}
		}
		rep(j, n) {
			ans += max(G[i][j].second, abs(G[i][j].first - id));
		}
	}
	cout << ans << endl;
}