/* -*- coding: utf-8 -*-
 *
 * 3759.cc:  No.3759 Watch Fireworks - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* constant */

const int MAX_N = 300000;
const int INF = (1U << 31) - 1;

/* typedef */

using ll = long long;

/* global variables */

int xs[MAX_N], ys[MAX_N];
int as[MAX_N], bs[MAX_N];

/* subroutines */

bool checksub(int n, int d, int a0, int b0) {
  int mina = INF, maxa = -1, minb = INF, maxb = -1;
  for (int i = 0; i < n; i++)
    if (as[i] < a0 || as[i] > a0 + d || bs[i] < b0 || bs[i] > b0 + d) {
      mina = min(mina, as[i]);
      maxa = max(maxa, as[i]);
      minb = min(minb, bs[i]);
      maxb = max(maxb, bs[i]);
    }
  return (maxa - mina <= d && maxb - minb <= d);
}

bool check(int n, int d, int mina, int maxa, int minb, int maxb) {
  return
    checksub(n, d, mina, minb) ||
    checksub(n, d, mina, maxb - d) ||
    checksub(n, d, maxa - d, minb) ||
    checksub(n, d, maxa - d, maxb - d);
}

/* main */

int main() {
  int n;
  scanf("%d", &n);
  for (int i = 0; i < n; i++) scanf("%d%d", xs + i, ys + i);
  if (n <= 1) { puts("0"); return 0; }

  for (int i = 0; i < n; i++)
    as[i] = xs[i] + ys[i], bs[i] = xs[i] - ys[i];
  
  int mina = *min_element(as, as + n);
  int maxa = *max_element(as, as + n);
  int minb = *min_element(bs, bs + n);
  int maxb = *max_element(bs, bs + n);

  int d0 = -1, d1 = 2000000000;
  while (d0 + 1 < d1) {
    int d = ((ll)d0 + d1) / 2;
    if (check(n, d, mina, maxa, minb, maxb)) d1 = d;
    else d0 = d;
  }

  printf("%d\n", d1);
  
  return 0;
}