#include <bits/stdc++.h>
using namespace std;
using LL = long long;

#define fs first
#define sc second

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }


// std::vector Declaration
template<typename T>
vector<T> make_v(size_t a) { return vector<T>(a); }
template<typename T,typename... Ts>
auto make_v(size_t a,Ts... ts) {
    return vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));
}

// std::vector Initialization
template<typename T>
void fill_all(T& arr, const T& v) { arr = v; }
template<typename T, typename U>
void fill_all(T& arr, const U& v) { for (auto& i : arr) fill_all(i, v); }

// std::vector Debug
template<typename T>
ostream& operator<<(ostream& os, const vector<T>& v) {
    os << "[";
    bool a = 1;
    for (auto e : v ) {
        os << (a ? "" : " ");
        os << e;
        a = 0;
    }
    os << "]";
    return os;
}

// std::pair Debug
template<typename T, typename U>
ostream& operator<<(ostream& os, const pair<T, U>& p) {
    os << "(" << p.first << " " << p.second << ")";
    return os;
}

// std::set Debug
template<typename T>
ostream& operator<<(ostream& os, const set<T>& st) {
    os << "{";
    bool a = 1;
    for (auto e : st) {
        os << (a ? "" : " ");
        os << e;
        a = 0;
    }
    os << "}";
    return os;
}

// std::multiset Debug
template<typename T>
ostream& operator<<(ostream& os, const multiset<T>& st) {
    os << "{";
    bool a = 1;
    for (auto e : st) {
        os << (a ? "" : " ");
        os << e;
        a = 0;
    }
    os << "}";
    return os;
}

// std::map Debug
template<typename T, typename U>
ostream& operator<<(ostream& os, const map<T, U>& mp) {
    os << "{";
    bool a = 1;
    for (auto e : mp) {
        os << (a ? "" : " ");
        os << e.first << ":" << e.second;
        a = 0;
    }
    os << "}";
    return os;
}

// std::tuple Debug
template<int N, class Tuple>
void out(ostream& os, const Tuple& t){}
template<int N, class Tuple, class H, class ...Ts>
void out(ostream& os, const Tuple& t) {
    if (N) os << " ";
    os << get<N>(t);
    out<N+1,Tuple,Ts...>(os, t);
}
template<class ...Ts>
ostream& operator<<(ostream& os, const tuple<Ts...>& t) {
    os << "(";
    out<0,tuple<Ts...>,Ts...>(os, t);
    os << ")";
    return os;
}

// Debug
#define DUMP(x) cerr<<#x<<" = "<<(x)<<endl


struct edge { int to, cost; };
ostream& operator<<(ostream& os, const edge& e) {
    os << "(" << e.to << ", " << e.cost << ")";
    return os;
}

const LL LINF = 1LL<<60;
const int IINF = 1<<30;

template<typename T> struct BIT {
    vector<T> bit;
    int len;
    BIT(int n) : len(n+1), bit(n+1) {}
    void add(int i, T x) {
        i += 1;
        while (i < len) { bit[i] += x; i += i & -i; }
    }
    T sum(int i) {
        i += 1; T s = 0;
        while (i > 0) { s += bit[i]; i -= i & -i; }
        return s;
    }
};

template<typename T, T mod>
struct ModInt {
    T val;
    ModInt(T val=0) : val(((val % mod) + mod) % mod) {}

    const ModInt operator+() const { return *this; }
    const ModInt operator-() const { return (-val + mod) % mod; }
    const ModInt reciprocal() const { return power(mod-2); }

    ModInt& operator+=(const ModInt& rhs) { (val += rhs.val) %= mod; return *this; }
    ModInt& operator-=(const ModInt& rhs) { return *this += -rhs; }
    ModInt& operator*=(const ModInt& rhs) { (val *= rhs.val) %= mod; return *this; }
    ModInt& operator/=(const ModInt& rhs) { return *this *= rhs.reciprocal(); }

    const ModInt operator+(const ModInt& rhs) const { return ModInt(*this) += rhs; }
    const ModInt operator-(const ModInt& rhs) const { return ModInt(*this) -= rhs; }
    const ModInt operator*(const ModInt& rhs) const { return ModInt(*this) *= rhs; }
    const ModInt operator/(const ModInt& rhs) const { return ModInt(*this) /= rhs; }

    const ModInt power(long long n) const {
        ModInt ret = 1, tmp = val;
        while (n > 0) {
            if (n & 1) ret *= tmp;
            tmp *= tmp;
            n >>= 1;
        }
        return ret;
    }

    bool operator==(const ModInt& rhs) const { return val == rhs.val; }
    bool operator!=(const ModInt& rhs) const { return !(*this == rhs); }
};

template<typename T, T mod>
const ModInt<T, mod> operator+(const T& lhs, const ModInt<T, mod>& rhs) {
    return ModInt<T, mod>(lhs) + rhs;
}
template<typename T, T mod>
const ModInt<T, mod> operator-(const T& lhs, const ModInt<T, mod>& rhs) {
    return ModInt<T, mod>(lhs) - rhs;
}
template<typename T, T mod>
const ModInt<T, mod> operator*(const T& lhs, const ModInt<T, mod>& rhs) {
    return ModInt<T, mod>(lhs) * rhs;
}
template<typename T, T mod>
const ModInt<T, mod> operator/(const T& lhs, const ModInt<T, mod>& rhs) {
    return ModInt<T, mod>(lhs) / rhs;
}

template<typename T, T mod>
bool operator==(const T& lhs, const ModInt<T, mod>& rhs) {
    return ModInt<T, mod>(lhs) == rhs;
}
template<typename T, T mod>
bool operator!=(const T& lhs, const ModInt<T, mod>& rhs) {
    return ModInt<T, mod>(lhs) != rhs;
}

template<typename T, T mod>
auto& operator<<(ostream& s, const ModInt<T, mod>& obj) { s << obj.val; return s; }

const LL MOD = 998244353;
using GF = ModInt<LL, MOD>;

int main()
{
    int n; cin >> n;
    vector<int> x(n), y(n);
    for (int i = 0; i < n; ++i) {
        cin >> x[i] >> y[i];
    }

    map<int,int> mx, my;
    vector<int> cx(x.begin(), x.end()), cy(y.begin(), y.end());
    sort(cx.begin(), cx.end());
    sort(cy.begin(), cy.end());
    for (int i = 0; i < n; ++i) {
        mx[cx[i]] = i;
        my[cy[i]] = i;
    }

    //DUMP(mx);
    //DUMP(my);

    BIT<int> bit(n);

    GF ans = 0;

    vector<int> ord(n);
    iota(ord.begin(), ord.end(), 0);
    sort(ord.begin(), ord.end(), [&](int i, int j) {
            return x[i] < x[j]; });

    for (int idx = 0; idx < n; ++idx) {
        int i = ord[idx];
        int X = x[i], Y = y[i];
        int a = bit.sum(my[Y]);
        bit.add(my[Y], 1);
        int b = my[Y] - a;
        int c = mx[X] - a;
        int d = n - (1+a+b+c);
        //assert(b >= 0);
        //assert(c >= 0);
        //assert(d >= 0);
        //DUMP(i);
        //DUMP(a);
        //DUMP(b);
        //DUMP(c);
        //DUMP(d);
        //cerr << endl;
        ans += (GF(2).power(a) - 1) * (GF(2).power(d) - 1) * GF(2).power(b+c)
             + (GF(2).power(b) - 1) * (GF(2).power(c) - 1) * GF(2).power(a+d)
             - (GF(2).power(a) - 1) * (GF(2).power(b) - 1) *
                (GF(2).power(c) - 1) * (GF(2).power(d) - 1);
    }

    ans += GF(n) * GF(2).power(n-1);
    //DUMP(ans);
    cout << ans << endl;

    return 0;
}


Measured memory_bytes: 23680