#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<bitset>
#include<set>
#include<map>
#include<stack>
#include<queue>
#include<deque>
#include<list>
#include<iomanip>
#include<cmath>
#include<cstring>
#include<functional>
#include<cstdio>
#include<cstdlib>
#include<numeric>
#include<ctime>
//#include<atcoder/all>
using namespace std;
//using namespace atcoder;

#define repr(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rep(i, n) repr(i, 0, n)
#define INF 2e9
//#define MOD 1000000007
#define MOD 998244353
#define LINF (long long)4e18
#define jck 3.141592
#define PI acos(-1.0)

const double EPS = 1e-10;

using ll = long long;
using Pi = pair<int,int>;
using Pl = pair<ll,ll>;
//using mint = modint998244353;

int dh[] = {-1,1,0,0};
int dw[] = {0,0,1,-1};

template<typename T>
vector<T> compress(vector<T> &v){
    vector<T> res = v;
    sort(res.begin(),res.end());
    res.erase(unique(res.begin(),res.end()),res.end());
    for(auto &u : v){u = lower_bound(res.begin(),res.end(),u)-res.begin();}
    return res;
}

template<typename T>
struct BinaryIndexedTree{
	vector<T> bit;
	BinaryIndexedTree(int sz){
		bit.resize(sz+1);
	}
	void add(int k, T x){ //k番目にxを加える
		for(int i = k; i < (int)bit.size(); i |= i+1) bit[i] += x;	
	}
	T sum(int k){ //[0,k)の区間の総和を求める
		T res = 0;      
		for(int i = k-1; i >= 0; i = (i&(i+1))-1){
			res += bit[i];
		}
		return res;
	}
};



int main(){
    int n; cin >> n;
    vector<ll> x(n),y(n);
    vector<Pl> xy(n);
    rep(i,n){
        cin >> x[i] >> y[i];
        xy[i].first = x[i];
        xy[i].second = y[i];
    }

    auto f = [&](auto v){
        ll s1 = 0,s2 = 0,s3 = 0;
        rep(i,n-1){
            s1 += v[i]*v[i]%MOD*(n-i-1)%MOD;
            s1 %= MOD;
        }
        vector<ll> sum(n+1);
        rep(i,n) sum[i+1] = (sum[i]+v[i]*v[i]%MOD)%MOD;
        rep(i,n-1){
            s3 += (sum[n]-sum[i+1]+MOD)%MOD;
            s3 %= MOD;
        }
        vector<ll> sum2(n+1);
        rep(i,n) sum2[i+1] = (sum2[i]+v[i])%MOD;
        rep(i,n-1){
            s2 += v[i]*(sum2[n]-sum2[i+1]+MOD)%MOD;
            s2 %= MOD;
        }
        s2 *= 2;
        s2 %= MOD;
        ll res = (s1+s3-s2+MOD)%MOD;
        return res;
    };

    ll ans = f(x)+f(y);

    sort(xy.begin(),xy.end());
    vector<ll> comp;
    rep(i,n) comp.push_back(xy[i].second);
    compress(comp);

    BinaryIndexedTree<ll> bit1(n),bit2(n),bit3(n),bit4(n); //1,x,y,x*yの和

    ll ans2 = 0;
    rep(i,n){
        ll l = xy[i].first;
        ll r = xy[i].second;
        ans2 += l*r%MOD*bit1.sum(comp[i]+1)%MOD;
        ans2 %= MOD;
        ans2 -= r*bit2.sum(comp[i]+1)%MOD;
        ans2 -= l*bit3.sum(comp[i]+1)%MOD;
        ans2 %= MOD;
        if(ans2 < 0) ans2 += MOD;
        ans2 += bit4.sum(comp[i]+1)%MOD;
        ans2 %= MOD;

        ans2 += l*(bit3.sum(n)-bit3.sum(comp[i]+1))%MOD;
        ans2 %= MOD;
        ans2 += r*(bit2.sum(n)-bit2.sum(comp[i]+1))%MOD;
        ans2 %= MOD;
        ans2 -= l*r%MOD*(bit1.sum(n)-bit1.sum(comp[i]+1))%MOD;
        ans2 -= (bit4.sum(n)-bit4.sum(comp[i]+1))%MOD;
        ans2 %= MOD;
        if(ans2 < 0) ans2 += MOD;
        bit1.add(comp[i],1);
        bit2.add(comp[i],l);
        bit3.add(comp[i],r);
        bit4.add(comp[i],l*r%MOD);

    }
    ans2 *= 2;
    ans += ans2;
    ans %= MOD;
    cout << ans << endl;
}