#include <bits/stdc++.h>
#include "unistd.h"
using namespace std;
#define FOR(i,a,b) for(int i=(a),i##formax=(b);i<i##formax;i++)
#define FORR(i,a,b) for(int i=(a),i##formax=(b);i>=i##formax;i--)
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define pcnt __builtin_popcount
#define sz(x) (int)(x).size()
#define maxs(x,y) x=max(x,y)
#define mins(x,y) x=min(x,y)
#define show(x) cout<<#x<<" = "<<x<<endl;
#define all(a) (a.begin()),(a.end())
#define each(it,c) for(__typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define perm(c) sort(all(c));for(bool c##p=1;c##p;c##p=next_permutation(all(c)))
#define bitComb(a,n,k) for(int a##x,a##y,a=(1<<k)-1;a<(1<<n);a##x=a&-a,a##y=a+a##x,a=(((a&~a##y)/a##x)>>1)|a##y)
#define bit(n) (1LL<<(n))
#define randInt(l,r) (uniform_int_distribution<ll>(l,r)(rnd))
#define randDouble(l,r) (uniform_real_distribution<double>(l,r)(rnd))
#define dout(d) printf("%.12f\n",d)

typedef long long ll;
typedef __int128_t lll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
template<class T>using V=vector<T>;
template<class T>using VV=V<V<T>>;
template<class T,class Y>ostream& operator<<(ostream&o,const pair<T,Y>&p){return o<<"("<<p.fi<<","<<p.se<<")";}
template<class T>ostream& operator<<(ostream&o,V<T>&v){for(T&t:v)o<<t<<",";return o<<endl;}
template<typename A,size_t N,typename T>void Fill(A (&array)[N],const T&v){fill((T*)array,(T*)(array+N),v);}
template<typename T>void uniq(V<T>&v){sort(all(v));v.erase(unique(all(v)), v.end());}
lll gcd(lll a,lll b,lll &x,lll &y){if(!b){x=1;y=0;return a;}lll d=gcd(b,a%b,y,x);y-=a/b*x;return d;}
ll modInv(ll a,ll m){lll x,y;gcd(a,m,x,y);return (x%m+m)%m;}
ll modPow(lll a,lll n,ll m){if(!a)return a;lll p=1;for(;n>0;n>>=1,a=a*a%m)if(n&1)p=p*a%m;return(ll)p;}
bool isPrime(ll n){if(n<2||n%2==0)return n==2;lll t=n-1,d=t/(t&-t);for(lll a:{2,325,9375,28178,450775,9780504,1795265022})if(a%n){for(t=d,a=modPow(a,t,n);t!=n-1&&a!=1&&a!=n-1;a=a*a%n,t=t*2%n);if(a!=n-1&&t%2==0)return 0;}return 1;}
//V<ll>fac,rfac;void setFac(int n,int mod){fac=rfac=V<ll>(++n);fac[0]=1;FOR(i,1,n)fac[i]=fac[i-1]*i%mod;rfac[n-1]=modInv(fac[n-1],mod);FORR(i,n-1,1)rfac[i-1]=rfac[i]*i%mod;}
const int IINF = 1e9+6;
const ll LINF = 1e18;
const int MOD = 998244353;
const double PI = acos(-1);
const double EPS = 1e-10;
static random_device rd;
static mt19937 rnd(rd());

void RE(){cout<<1/0;}
void TLE(){sleep(100);}
void WA(){cout<<char(0);exit(0);}

const int N = 2e5;
int n, z[N];
int UL[N], UR[N], DL[N], DR[N];
pii p[N];
struct Seg{
  typedef int T;
  const T e = 0;
  void merge(const T &a, const T &b, T &c){
    c = a+b;
  }

  int n;
  vector<T> d;

  void init(int m){
    n = 1<<(32-__builtin_clz(m-1));
    d = vector<T>(2*n, e);
  }
  void init(vector<T> &v){
    init(v.size());
    FOR(j, 0, v.size()) d[j+n] = v[j];
    for(int k=n-1;k>0;k--) merge(d[k*2], d[k*2+1], d[k]);
  }
  void update(int k, T a){
    k+=n;
    d[k]=a;
    while(k){
      k >>= 1;
      merge(d[k*2], d[k*2+1], d[k]);
    }
  }
  T query(int L, int R) {
    L += n; R += n;
    T l=e, r=e;
    while (L < R) {
      if (L & 1) merge(l, d[L++], l);
      if (R & 1) merge(d[--R], r, r);
      L >>= 1; R >>= 1;
    }
    merge(l, r, l);
    return l;
  }
  T get(int a){
    return d[n+a];
  }
} seg;

main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  cin >> n;
  FOR(i, 0, n){
    cin >> p[i].fi >> p[i].se;
    z[i] = p[i].se;
  }
  sort(p, p+n);
  sort(z, z+n);
  seg.init(n);
  FOR(i, 0, n){
    int j = lower_bound(z, z+n, p[i].se)-z;
    DL[i] = seg.query(0, j);
    UL[i] = i-DL[i];
    seg.update(j, 1);
  }
  seg.init(n);
  FORR(i, n-1, 0){
    int j = lower_bound(z, z+n, p[i].se)-z;
    DR[i] = seg.query(0, j);
    UR[i] = n-1-i-DR[i];
    seg.update(j, 1);
  }
  ll ans = modPow(2, n, MOD)*n%MOD-n;
  FOR(i, 0, n){
    ll ul = modPow(2, UL[i], MOD);
    ll dl = modPow(2, DL[i], MOD);
    ll ur = modPow(2, UR[i], MOD);
    ll dr = modPow(2, DR[i], MOD);
    ans += ul+dl+ur+dr - (ul*ur+dl*dr+ul*dl+ur*dr) % MOD;
  }
  cout << (ans%MOD+MOD)%MOD << endl;
}

Measured memory_bytes: 9344