#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic pop
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<P> z(n);
  rep(i, n) {
    int x, y;
    cin >> x >> y;
    z[i] = {x + y, -x + y};
  }
  constexpr int INF = 1001001001;
  ll l = -1, r = 4LL * INF;
  while(r - l > 1) {
    ll c = (l + r) / 2;
    bool ok = false;
    rep(_, 2) {
      ll umn = 2 * INF, vmn = 2 * INF;
      for(auto [u, v]: z) chmin<ll>(umn, u), chmin<ll>(vmn, v);
      ll cu = umn + c, cv = vmn + c;
      umn = -2 * INF, vmn = -2 * INF;
      ll umx = 2 * INF, vmx = 2 * INF;
      for(auto [u, v]: z) {
        if (abs(u - cu) <= c && abs(v - cv) <= c) continue;
        chmax(umn, u - c);
        chmin(umx, u + c);
        chmax(vmn, v - c);
        chmin(vmx, v + c);
      }
      if (umn <= umx && vmn <= vmx) ok = true;
      for(auto& [u, v]: z) v = -v;
    }
    (ok ? r : l) = c;
  }
  cout << r << '\n';
}