#include <bits/stdc++.h>
#define MOD 998244353

template<int mod>
struct ModInt{
    int x;
    ModInt():x(0){}
    ModInt(long long y):x(y>=0?y%mod:(mod-(-y)%mod)%mod){}
    ModInt &operator+=(const ModInt &p){
        if((x+=p.x)>=mod)x-=mod;
        return *this;
    }
    ModInt &operator-=(const ModInt &p){
        if((x+=mod-p.x)>=mod)x-=mod;
        return *this;
    }
    ModInt &operator*=(const ModInt &p){
        x=(int)(1LL*x*p.x%mod);
        return *this;
    }
    ModInt &operator/=(const ModInt &p){
        *this*=p.inverse();
        return *this;
    }
	ModInt &operator^=(long long p){
		ModInt res = 1;
		for (; p; p >>= 1) {
			if (p & 1) res *= *this;
			*this *= *this;
		}
		return *this = res;
	}
    ModInt operator-()const{return ModInt(-x);}
    ModInt operator+(const ModInt &p)const{return ModInt(*this)+=p;}
    ModInt operator-(const ModInt &p)const{return ModInt(*this)-=p;}
    ModInt operator*(const ModInt &p)const{return ModInt(*this)*=p;}
    ModInt operator/(const ModInt &p)const{return ModInt(*this)/=p;}
	ModInt operator^(long long p)const{return ModInt(*this)^=p;}
    bool operator==(const ModInt &p)const{return x==p.x;}
    bool operator!=(const ModInt &p)const{return x!=p.x;}
    explicit operator int() const { return x; }                           // added by QCFium
    ModInt operator=(const int p) {x = p; return ModInt(*this);} // added by QCFium
    ModInt inverse()const{
        int a=x,b=mod,u=1,v=0,t;
        while(b>0){
            t=a/b;
            a-=t*b;
            std::swap(a,b);
            u-=t*v;
            std::swap(u,v);
        }
        return ModInt(u);
    }
    friend std::ostream &operator<<(std::ostream &os,const ModInt<mod> &p){
        return os<<p.x;
    }
    friend std::istream &operator>>(std::istream &is,ModInt<mod> &a){
        long long x;
        is>>x;
        a=ModInt<mod>(x);
        return (is);
    }
};
typedef ModInt<MOD> mint;

struct MComb {
    std::vector<mint> fact;
    std::vector<mint> inversed;
    MComb(int n) { // O(n+log(mod))
        fact = std::vector<mint>(n+1,1);
        for (int i = 1; i <= n; i++) fact[i] = fact[i-1]*mint(i);
        inversed = std::vector<mint>(n+1);
        inversed[n] = fact[n] ^ (MOD-2);
        for (int i = n - 1; i >= 0; i--) inversed[i]=inversed[i+1]*mint(i+1);
    }
    mint ncr(int n, int r) {
        return (fact[n] * inversed[r] * inversed[n-r]);
    }
    mint npr(int n, int r) {
        return (fact[n] * inversed[n-r]);
    }
    mint nhr(int n, int r) {
        assert(n+r-1 < (int)fact.size());
        return ncr(n+r-1, r);
    }
};


struct SegTree {
	std::vector<int> data;
	int n;
	SegTree(int n_) {
		for (n = 1; n < n_; n *= 2);
		data.resize(2 * n);
	}
	void add(int i, int val) {
		for (i += n; i; i >>= 1) data[i] += val;
	}
	int sum(int l, int r) {
		int res = 0;
		for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
			if (r & 1) r--, res += data[r];
			if (l & 1) res += data[l], l++;
		}
		return res;
	}
};

int ri() {
	int n;
	scanf("%d", &n);
	return n;
}

struct Point {
	int x;
	int y;
	int id;
	int y_comped;
};

int main() {
	int n = ri();
	Point a[n];
	for (int i = 0; i < n; i++) a[i].x = ri(), a[i].y = ri(), a[i].id = i;
	
	std::sort(a, a + n, [](const Point &a, const Point &b) { return a.y < b.y; });
	int cnt = 0;
	int last = -1;
	for (auto &i : a) {
		if (i.y != last) {
			last = i.y;
			i.y_comped = cnt++;
		} else i.y_comped = cnt;
	}
	
	std::sort(a, a + n, [](const Point &a, const Point &b) { return a.x < b.x; });
	
	SegTree forward(cnt), back(cnt);
	for (auto &i : a) back.add(i.y_comped, 1);
	
	mint res = 0;
	for (auto &i : a) {
		back.add(i.y_comped, -1);
		
		res -= (mint(2) ^ back.sum(0, back.n));
		res -= (mint(2) ^ forward.sum(0, forward.n));
		res += (mint(2) ^ forward.sum(0, i.y_comped));
		res += (mint(2) ^ forward.sum(i.y_comped + 1, forward.n));
		res += (mint(2) ^ back.sum(0, i.y_comped));
		res += (mint(2) ^ back.sum(i.y_comped + 1, back.n));
		
		forward.add(i.y_comped, 1);
	}
	res -= (mint(2) ^ (n + 1)) - 2;
	res += ((mint(2) ^ n) - 1) * n;
	std::cout << res << std::endl;
	
	return 0;
}


Measured memory_bytes: 7424