#include <algorithm>
#include <iostream>
#include <numeric>
#include <vector>
using namespace std;

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

    vector<int> xord(N), yord(N);
    iota(xord.begin(), xord.end(), 0);
    sort(xord.begin(), xord.end(), [&](int a, int b)
         { return X[a] < X[b]; });
    iota(yord.begin(), yord.end(), 0);
    sort(yord.begin(), yord.end(), [&](int a, int b)
         { return Y[a] < Y[b]; });

    if (X[xord.front()] == X[xord.back()] || Y[yord.front()] == Y[yord.back()])
    {
        cout << 0 << endl;
        return 0;
    }

    int xpt = X[0], ypt = Y[0];
    auto calc = [&]()
    {
        long long ans = 0;
        for (int i = 0; i < N; i++)
        {
            ans += 1LL * abs(X[i] - xpt) * abs(Y[i] - ypt);
        }
        return ans;
    };
    while (true)
    {
        {
            long long sd = 0;
            for (int i = 0; i < N; i++)
                sd += abs(Y[i] - ypt);

            long long cs = 0;
            for (int i : xord)
            {
                cs += abs(Y[i] - ypt);
                if (cs * 2 >= sd)
                {
                    if (xpt == X[i])
                    {
                        cout << calc() << endl;
                        return 0;
                    }
                    else
                    {
                        xpt = X[i];
                        break;
                    }
                }
            }
        }
        {
            long long sd = 0;
            for (int i = 0; i < N; i++)
                sd += abs(X[i] - xpt);

            long long cs = 0;
            for (int i : yord)
            {
                cs += abs(X[i] - xpt);
                if (cs * 2 >= sd)
                {
                    if (ypt == Y[i])
                    {
                        cout << calc() << endl;
                        return 0;
                    }
                    else
                    {
                        ypt = Y[i];
                        break;
                    }
                }
            }
        }
    }
}