#include <algorithm>
#include <climits>
#include <iostream>
#include <vector>

using namespace std;
int main()
{
	ios::sync_with_stdio(false);
	int N;
	cin >> N;
	vector<pair<int, int>> V(N);

	int mina = INT_MAX, maxa = INT_MIN, minb = INT_MAX, maxb = INT_MIN;
	for (auto &[a, b] : V)
	{
		int x, y;
		cin >> x >> y;
		a = (x + y) / 2, b = (x - y) / 2;
		mina = min(mina, a), maxa = max(maxa, a);
		minb = min(minb, b), maxb = max(maxb, b);
	}
	int ans1 = 0, ans2 = 0;
	for (auto [a, b] : V)
	{
		ans1 = max(ans1, min(max(a - mina, b - minb), max(maxa - a, maxb - b)));
		ans2 = max(ans2, min(max(a - mina, maxb - b), max(maxa - a, b - minb)));
	}
	cout << min(ans1, ans2) << endl;
}