//嘘解法

#include <iostream>
#include <vector>
#define rep(i, l, n) for (int i = (l); i < (n); i++)
#define chmin(x, y) if(x > (y)){ x = (y); }
#define chmax(x, y) if(x < (y)){ x = (y); }
using namespace std;
using ll = long long;
template <class T>
using V = vector<T>;
template <class T>
using VV = V<V<T> >;

int N;
ll max_x, max_y, min_x, min_y;


bool func(VV<ll>& P, ll k) {
	k *= 2;
	VV<int> block = { {0,0},{0,0} };
	for (auto& p : P) {
		ll x = p[0], y = p[1];
		if ((x < max_x - k and x > min_x + k) or (y < max_y - k and y > min_y + k)) {
			return false;
		}
		if (x < max_x - k and y < max_y - k) {
			block[0][0] = 1;
		}
		if (x > min_x + k and y < max_y - k) {
			block[1][0] = 1;
		}
		if (x < max_x - k and y > min_y + k) {
			block[0][1] = 1;
		}
		if (x > min_x + k and y > min_y + k) {
			block[1][1] = 1;
		}
	}
	if ((block[0][0] | block[1][1]) == 0 or (block[0][1] | block[1][0]) == 0) {
		return true;
	}
	return false;
}


int main(void) {
	cin >> N;
	VV<ll> P(N, V<ll>(2));
	rep(i, 0, N) {
		ll x, y;	cin >> x >> y;
		P[i] = { x + y,x - y };
	}

	max_x = min_x = P[0][0];
	max_y = min_y = P[0][1];
	rep(i, 1, N) {
		chmax(max_x, P[i][0]);	chmax(max_y, P[i][1]);
		chmin(min_x, P[i][0]);	chmin(min_y, P[i][1]);
	}

	ll ok = 1000000001, ng = -1;
	while (ok - ng > 1) {
		ll k = (ok + ng) / 2;
		if (func(P, k)) {
			ok = k;
		}
		else {
			ng = k;
		}
	}

	ll ans = ok;
	cout << ans << endl;

	return 0;
}