#include <bits/stdc++.h>
using namespace std;

int main()
{
    cin.tie(0)->sync_with_stdio(0);

    int N;
    cin >> N;
    vector<int> X(N);
    vector<int> Y(N);
    for (int i = 0; i < N; i++) {
        cin >> X[i] >> Y[i];
    }

    int Xa = accumulate(X.begin(), X.end(), 0.0F) / N + 0.5;
    int Ya = accumulate(Y.begin(), Y.end(), 0.0F) / N + 0.5;

    int ans = 0;
    for (int i = 0; i < N; i++) {
        ans += abs(X[i] - Xa) + abs(Y[i] - Ya);
    }
    cout << ans << endl;

    return 0;
}