#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); ++i)

int main() {
  int n;
  cin >> n;
  vector<pair<int, int>> v(n);
  rep(i, n) cin >> v[i].first >> v[i].second;
  int ans = 1e9;
  for (int x = 0; x <= 300; x++) {
    for (int y = 0; y <= 300; y++) {
      int sum = 0;
      rep(i, n) sum += abs(v[i].first - x) + abs(v[i].second - y);
      ans = min(ans, sum);
    }
  }
  cout << ans << endl;
  return 0;
}