#include<bits/stdc++.h>
using namespace std;
 
using ll=long long;
const int maxn=1e5+5;
 
int n;
vector<int>X,Y,a,b;
bool cmp(int a, int b)
{
    return a<b;
}
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        int a1,a2;
        cin>>a1>>a2;
        X.push_back(a1);
        Y.push_back(a2);
    }
    sort(X.begin(),X.end(),cmp);
    sort(Y.begin(),Y.end(),cmp);
    for(int i=1;i<X.size();i++)
    {
        a.push_back(X[i]-X[i-1]);
        b.push_back(Y[i]-Y[i-1]);
    }
    ll t1=0,t2=0;
    for(int i=0;i<a.size();i++)
    {
        t1+=a[i]*(i+1)*(a.size()-i);
        t2+=b[i]*(i+1)*(b.size()-i);
    }
    cout<<t1+t2;
}
 
 

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