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

int main(){
	int n;
	cin >> n;
	int x[n],y[n];
	for(int i = 0;i < n;i++) cin >> x[i] >> y[i];
	int ans = pow(10,9);
	for(int i = 0;i <= 300;i++){
		for(int j = 0;j <= 300;j++){
			int t = 0;
			for(int k = 0;k < n;i++){
				t += abs(x[i] - i) + abs(y[i] - j);
			}
			ans = min(ans,t);
		}
	}
	cout << ans;
}