#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

using namespace std;

using Int = long long;

template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
#define COLOR(s) ("\x1b[" s "m")


constexpr Int INF = 1001001001001001001LL;

int N;
vector<Int> X, Y;

bool solve(Int thr, int k, const vector<int> &us) {
  if (!us.size()) return true;
  if (!k) return false;
  Int xs[2] = {-INF, +INF};
  Int ys[2] = {-INF, +INF};
  for (const int u : us) {
    chmax(xs[0], X[u]); chmin(xs[1], X[u] + thr);
    chmax(ys[0], Y[u]); chmin(ys[1], Y[u] + thr);
  }
  for (int s = 0; s < 2; ++s) for (int t = 0; t < 2; ++t) {
    vector<int> vs;
    for (const int u : us) {
      if (true
          && X[u] <= xs[s] && xs[s] <= X[u] + thr
          && Y[u] <= ys[t] && ys[t] <= Y[u] + thr
      ) {
        //
      } else {
        vs.push_back(u);
      }
    }
    if (solve(thr, k - 1, vs)) {
      return true;
    }
  }
  return false;
}

bool check(Int thr) {
  vector<int> us(N);
  for (int u = 0; u < N; ++u) us[u] = u;
  return solve(thr, 3, us);
}

int main() {
  for (; ~scanf("%d", &N); ) {
    X.resize(N);
    Y.resize(N);
    for (int u = 0; u < N; ++u) {
      int a, b;
      scanf("%d%d", &a, &b);
      X[u] = a + b;
      Y[u] = a - b;
    }
    
    Int lo = -1, hi = 1001001001LL;
    for (; lo + 1 < hi; ) {
      const Int mid = (lo + hi) / 2;
      (check(mid) ? hi : lo) = mid;
    }
    printf("%lld\n", hi);
  }
  return 0;
}