#include<bits/stdc++.h>
#define CSP2026 using
#define RP namespace
#define PLUSPLUS std
CSP2026 RP PLUSPLUS;
#define debug(x) cout<<"clock="<<clock()<<' '<<#x<<'='<<(x)<<'\n'
//#define getchar getchar_unlocked
using ll=long long;
inline int rd(){int x=0,f=1;char ch=getchar();for(;!isdigit(ch);ch=getchar())if(ch=='-')f=-1;for(;isdigit(ch);ch=getchar())x=(x<<3)+(x<<1)+(ch^48);return x*f;}
inline ll rdll(){ll x=0;int f=1;char ch=getchar();for(;!isdigit(ch);ch=getchar())if(ch=='-')f=-1;for(;isdigit(ch);ch=getchar())x=(x<<3)+(x<<1)+(ch^48);return x*f;}
constexpr int N=3e5+5;
ll a[N],b[N];
signed main(){
	int n=rd();
	ll mxa=LLONG_MIN,mna=LLONG_MAX;
	ll mxb=LLONG_MIN,mnb=LLONG_MAX;
	for(int i=1;i<=n;++i){
		int x=rd(),y=rd();
		a[i]=x+y;b[i]=x-y;
		mxa=max(mxa,a[i]);
		mna=min(mna,a[i]);
		mxb=max(mxb,b[i]);
		mnb=min(mnb,b[i]);
	}int l=0,r=max(mxa-mna,mxb-mnb),d=r;
	while(l<=r){
		int mid=(l+r)>>1;
		bool flag=1;
		for(int i=1;i<=n;++i){
			if(!(a[i]<=mna+mid&&b[i]<=mnb+mid)
			 &&!(a[i]>=mxa-mid&&b[i]>=mxb-mid)){flag=0;break;}
		}if(flag){d=mid,r=mid-1;continue;}
		for(int i=1;i<=n;++i){
			if(!(a[i]<=mna+mid&&b[i]>=mxb-mid)
			   &&!(a[i]>=mxa-mid&&b[i]<=mnb+mid)){flag=0;break;}
		}if(flag)d=mid,r=mid-1;
		else l=mid+1;
	}cout<<d<<'\n';
}