#include <bits/stdc++.h>

int ri() {
	int n;
	scanf("%d", &n);
	return n;
}

int main() {
	int n = ri();
	int a[n][n];
	for (auto &i : a) for (auto &j : i) j = ri() - 1;
	std::vector<std::pair<int, int> > cover[n];
	for (int i = 0; i < n; i++) for (int j = 0; j < n; j++) cover[a[i][j]].push_back({i, j});
	int64_t res = 0;
	for (int i = 0; i < n; i++) {
		int imos[n + 1];
		memset(imos, 0, sizeof(imos));
		for (auto j : cover[i]) {
			imos[0]++;
			imos[std::max(0, j.first - j.second)]--;
			imos[std::min(n, j.first + j.second + 1)]--;
			imos[n]++;
		}
		for (int j = 0; j < n; j++) imos[j + 1] += imos[j];
		int index = -1;
		for (int j = 0; j < n; j++) {
			if (j + 1 == n || imos[j] <= 0) {
				index = j;
				break;
			}
		}
		auto trial = [&] (int index) {
			if (index < 0) index = 0;
			if (index >= n) index = n - 1;
			int64_t r0 = 0;
			for (auto j : cover[i]) r0 += std::max(std::abs(j.first - index), j.second);
			return r0;
		};
		res += std::min({trial(index), trial(index - 1), trial(index + 1)});
	}
	printf("%" PRId64 "\n", res);
	return 0;
}