#include <bits/stdc++.h>
using namespace std;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int N; cin >> N;
    vector<pair<long long,long long>> XY(N);
    long long maxX = -1e18,minX = 1e18,minY = 1e18,maxY = -1e18;
    for(auto &[x,y] : XY){
        cin >> x >> y;
        x += y,y = x-y*2;
        maxX = max(maxX,x),minX = min(minX,x);
        maxY = max(maxY,y),minY = min(minY,y);
    }
    
    const long long inf = 1e18;
    long long low = -1,high = 1e10;
    while(high-low > 1){
        long long mid = (high+low)/2;
        bool ok = true;
        if(maxX-minX <= mid){
            for(auto [x,y] : XY){
                if(minY+mid >= y || maxY-mid <= y) continue;
                ok = false; break;
            }
        }
        else if(maxY-minY <= mid){
            for(auto [x,y] : XY){
                if(minX+mid >= x || maxX-mid <= x) continue;
                ok = false; break;
            }
        }
        else{
            ok = false;
            {
                long long xl = inf,xr = -inf,yl = inf,yr = -inf;
                for(auto [x,y] : XY){
                    if(maxX-mid <= x && maxY-mid <= y) continue;
                    xl = min(xl,x),xr = max(xr,x),yl = min(yl,y),yr = max(yr,y);
                }
                if(xl == -inf || max(xr-xl,yr-yl) <= mid) ok = true;
            }
            {
                long long xl = inf,xr = -inf,yl = inf,yr = -inf;
                for(auto [x,y] : XY){
                    if(maxX-mid <= x && minY+mid >= y) continue;
                    xl = min(xl,x),xr = max(xr,x),yl = min(yl,y),yr = max(yr,y);
                }
                if(xl == -inf || max(xr-xl,yr-yl) <= mid) ok = true;
            }
        }
        if(ok) high = mid;
        else low = mid;
    }
    cout << high << endl;
}