#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)

int dist(int x1, int y1, int x2, int y2){
    return abs(x1 - x2) + abs(y1 - y2);
}

int main(){
    int N;
    cin >> N;

    vector<int> X(N), Y(N);
    rep(i, 0, N) cin >> X[i] >> Y[i];

    int ans = 1 << 30;
    rep(x, 1, 301){
        rep(y, 1, 301){
            int s = 0;
            rep(i, 0, N){
                s += dist(x, y, X[i], Y[i]);
            }
            ans = min(ans, s);
        }
    }
    cout << ans << endl;

    return 0;
}