#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
template<int MOD> class Modular {
private:
  long long value;
public:
  constexpr Modular() : value() {};
  constexpr Modular(const Modular& other) : value(other.value) {}
  template <typename U> constexpr Modular(const U& x) { value = normalize(x); }

  template <typename U> static long long normalize(const U& x) {
    long long v;
    if (-MOD <= x && x < MOD) v = static_cast<long long>(x);
    else v = static_cast<long long>(x % MOD);
    if (v < 0) v += MOD;
    return v;
  }

  constexpr long long inverse(long long x) {
    x = (x % MOD + MOD) % MOD;
    long long y = MOD, u = 1, v = 0;
    while(y) {
      long long t = x / y;
      x -= t * y; swap(x, y);
      u -= t * v; swap(u, v);
    }
    return (u % MOD + MOD) % MOD;
  }

  explicit operator long long() const noexcept { return value;}
 	template <typename U> explicit operator U() const noexcept { return static_cast<U>(value); }

  constexpr Modular& operator=(const Modular& other) & noexcept { value = other.value; return *this; }
  template <typename U> constexpr Modular& operator=(const U& other) & noexcept { return *this = Modular(other); }

  constexpr Modular& operator+=(const Modular& other) noexcept { if ((value += other.value) >= MOD) value -= MOD; return *this; }
  template <typename U> constexpr Modular& operator+=(const U& other) noexcept { return *this += Modular(other); }

  constexpr Modular& operator-=(const Modular& other) noexcept { if ((value -= other.value) < 0) value += MOD; return *this; }
  template <typename U> constexpr Modular& operator-=(const U& other) noexcept { return *this -= Modular(other); }

  constexpr Modular& operator*=(const Modular& other) noexcept { value = value * other.value % MOD; return *this; }
  template <typename U> constexpr Modular& operator*=(const U& other) noexcept {return *this *= Modular(other); }

  constexpr Modular& operator/=(const Modular& other) noexcept { return *this *= Modular(inverse(other.value)); }
  template <typename U> constexpr Modular& operator/=(const U& other) noexcept { return *this *= Modular(inverse(normalize(other))); }

  constexpr Modular& operator++() noexcept {return *this += 1; }
  constexpr Modular operator++(int) noexcept { Modular ret(*this); *this += 1; return ret; }

  constexpr Modular& operator--() noexcept {return *this -= 1; }
  constexpr Modular operator--(int) noexcept { Modular ret(*this); *this += 1; return ret; }

  constexpr Modular operator-() const { return Modular(-value); }

  friend constexpr bool operator==(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return lhs.value == rhs.value; }
  template <typename U> friend constexpr bool operator==(const Modular<MOD>& lhs, U rhs) noexcept { return lhs == Modular<MOD>(rhs); }
  template <typename U> friend constexpr bool operator==(U lhs, const Modular<MOD>& rhs) noexcept { return Modular<MOD>(lhs) == rhs; }

  friend constexpr bool operator!=(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return !(lhs == rhs); }
  template <typename U> friend constexpr bool operator!=(const Modular<MOD>& lhs, U rhs) noexcept { return !(lhs == rhs); }
  template <typename U> friend constexpr bool operator!=(U lhs, const Modular<MOD> rhs) noexcept { return !(lhs == rhs); }

  friend constexpr bool operator<(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return lhs.value < rhs.value; }
  template <typename U> friend constexpr bool operator<(const Modular<MOD> &lhs, U rhs) noexcept { return lhs.value < rhs; }
  template <typename U> friend constexpr bool operator<(U lhs, const Modular<MOD> &rhs) noexcept { return lhs < rhs.value; }

  friend constexpr bool operator>(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return rhs.value < lhs.value; }
  template <typename U> friend constexpr bool operator>(const Modular<MOD> &lhs, U rhs) noexcept { return rhs.value < lhs; }
  template <typename U> friend constexpr bool operator>(U lhs, const Modular<MOD> &rhs) noexcept { return rhs < lhs.value; }

  friend constexpr bool operator<=(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return !(lhs.value > rhs.value); }
  template <typename U> friend constexpr bool operator<=(const Modular<MOD> &lhs, U rhs) noexcept { return !(lhs.value > rhs); }
  template <typename U> friend constexpr bool operator<=(U lhs, const Modular<MOD> &rhs) noexcept { return !(lhs < rhs.value); }

  friend constexpr bool operator>=(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return !(lhs.value < rhs.value); }
  template <typename U> friend constexpr bool operator>=(const Modular<MOD> &lhs, U rhs) noexcept { return !(lhs.value < rhs); }
  template <typename U> friend constexpr bool operator>=(U lhs, const Modular<MOD> &rhs) noexcept { return !(lhs < rhs.value); }

  friend constexpr Modular<MOD> operator+(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return Modular<MOD>(lhs) += rhs; }
  template <typename U> friend constexpr Modular<MOD> operator+(const Modular<MOD>& lhs, U rhs) noexcept { return Modular<MOD>(lhs) += rhs; }
  template <typename U> friend constexpr Modular<MOD> operator+(U lhs, const Modular<MOD> &rhs) noexcept { return Modular<MOD>(lhs) += rhs; }

  friend constexpr Modular<MOD> operator-(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return Modular<MOD>(lhs) -= rhs; }
  template <typename U> friend constexpr Modular<MOD> operator-(const Modular<MOD>& lhs, U rhs) noexcept { return Modular<MOD>(lhs) -= rhs; }
  template <typename U> friend constexpr Modular<MOD> operator-(U lhs, const Modular<MOD> &rhs) noexcept { return Modular<MOD>(lhs) -= rhs; }

  friend constexpr Modular<MOD> operator*(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return Modular<MOD>(lhs) *= rhs; }
  template <typename U> friend constexpr Modular<MOD> operator*(const Modular<MOD>& lhs, U rhs) noexcept { return Modular<MOD>(lhs) *= rhs; }
  template <typename U> friend constexpr Modular<MOD> operator*(U lhs, const Modular<MOD> &rhs) noexcept { return Modular<MOD>(lhs) *= rhs; }

  friend constexpr Modular<MOD> operator/(const Modular<MOD>& lhs, const Modular<MOD>& rhs) noexcept { return Modular<MOD>(lhs) /= rhs; }
  template <typename U> friend constexpr Modular<MOD> operator/(const Modular<MOD>& lhs, U rhs) noexcept { return Modular<MOD>(lhs) /= rhs; }
  template <typename U> friend constexpr Modular<MOD> operator/(U lhs, const Modular<MOD> &rhs) noexcept { return Modular<MOD>(lhs) /= rhs; }

  friend std::ostream& operator<<(std::ostream& stream, const Modular<MOD>& number) noexcept { return stream << number.value; }
  friend std::istream& operator>>(std::istream& stream, Modular<MOD>& number) { long long in; stream >> in; number.value = Modular<MOD>::normalize(in); return stream; }
  
  constexpr int getmod() const { return MOD; }
};

template<int MOD, typename U> Modular<MOD> power(const Modular<MOD>& x, const U& y) {
  assert(y >= 0);
  Modular<MOD> k = x, result = 1;
  U p = y;
  while (p > 0) {
    if (p & 1) result *= k;
    k *= k;
    p >>= 1;
  }
  return result;
}

template<int MOD> class BinaryCoefficients {
private:
  vector<Modular<MOD>> fact_, inv_, finv_;
public:
  constexpr BinaryCoefficients(int n = 2020200) : fact_(n, 1), inv_(n, 1), finv_(n, 1) {
    for (int i = 2; i < n; i++) {
      fact_[i] = fact_[i - 1] * i;
      inv_[i] = -inv_[MOD % i] * (MOD / i);
      finv_[i] = finv_[i - 1] * inv_[i];
    }
  }
  constexpr Modular<MOD> comb(int n, int k) const noexcept { if (n < k || n < 0 || k < 0) return 0; return fact_[n] * finv_[k] * finv_[n - k]; }
  constexpr Modular<MOD> fact(int n) const noexcept { if (n < 0) return 0; return fact_[n]; }
  constexpr Modular<MOD> inv(int n) const noexcept { if (n < 0) return 0; return inv_[n]; }
  constexpr Modular<MOD> finv(int n) const noexcept { if (n < 0) return 0; return finv_[n]; }
};

//constexpr int mod = 1e9 + 7;
constexpr int mod = 998244353;
using mint = Modular<mod>;
using bicoef = BinaryCoefficients<mod>;


map<long long, int> zip;
vector<long long> unzip;
template <typename T> void compress(vector<T>& v) {
  for (int i = 0; i < (int) v.size(); i++) unzip.push_back(v[i]);
  unzip.push_back(-(1 << 30));
  sort(unzip.begin(), unzip.end());
  unzip.erase(unique(unzip.begin(), unzip.end()), unzip.end());
  for (int i = 0; i < (int) unzip.size(); i++) zip[unzip[i]] = i;
}

template<typename T>
class Fenwick {
private:
  int n;
  vector<T> bit;
public:
  Fenwick() : n(-1) {}
  Fenwick(int n_, T d = T()) : n(n_), bit(n + 1, d) {}

  inline void add(int i, T val) {
    if (i == 0) return;
    for (int x = i; x <= n; x += (x & -x)) bit[x] += val;
  }

  // [1, i);
  inline T get(int i) {
    T res = T();
    for (int x = i; x > 0; x -= (x & - x)) res += bit[x];
    return res;
  }

  // return [i, j);
  inline T get(int i, int j) {
    return get(j - 1) - get(i - 1);
  }

  inline int lower_bound(int val) {
    if (val <= 0) return 0;
    int x = 0, r = 1;
    while (r < n) r <<= 1;
    for (int k = r; k > 0; k >>= 1) {
      if (x + k <= n && bit[x + k] < val) {
        val -= bit[x + k];
        val += k;
      }
    }
    return x + 1;
  }

  const T& operator[](const int &i) const {
    return bit[i];
  }
};

signed main() { 
  ios::sync_with_stdio(false); cin.tie(0);
  int n;
  cin >> n;
  vector<pair<int, int>> in(n);
  for (int i = 0; i < n; i++) {
    cin >> in[i].first >> in[i].second;
  }
  sort(in.begin(), in.end());
  vector<int> y(n);
  for (int i = 0; i < n; i++) y[i] = in[i].second;
  compress(y);
  vector<vector<int>> cnt(n, vector<int>(4));
  {
    Fenwick<int> bit(n, 0);
    for (int i = 0; i < n; i++) {
      cnt[i][0] = bit.get(zip[y[i]]);
      cnt[i][1] = bit.get(zip[y[i]], n + 1);
      bit.add(zip[y[i]], 1);
    }
  }
  {
    Fenwick<int> bit(n, 0);
    for (int i = n - 1; i >= 0; i--) {
      cnt[i][3] = bit.get(zip[y[i]]);
      cnt[i][2] = bit.get(zip[y[i]], n + 1);
      bit.add(zip[y[i]], 1);
    }
  }
  auto calc = [&] (int i, int j) -> mint { return power((mint) 2, cnt[i][j]) - 1; };
  auto calc2 = [&] (int i, int j) -> mint { return power((mint) 2, cnt[i][j]); };
  mint ans = (power((mint) 2, n - 1)) * n;
  for (int i = 0; i < n; i++) {
    mint x = calc2(i, 0) * calc2(i, 2);
    mint y = calc2(i, 1) * calc2(i, 3);
    mint all = calc(i, 0) * calc(i, 1) * calc(i, 2) * calc(i, 3);
    x *= calc(i, 1) * calc(i, 3);
    y *= calc(i, 0) * calc(i, 2);
    ans += x + y - all;
  }
  cout << ans << endl;
  return 0;
}
    

Measured memory_bytes: 29936