use self::mod_int::ModInt;
const MOD: usize = 998244353;

fn main() {
    let (r, w) = (std::io::stdin(), std::io::stdout());
    let mut sc = IO::new(r.lock(), w.lock());

    let n: usize = sc.read();
    let xy: Vec<(i64, i64)> = (0..n).map(|_| (sc.read(), sc.read())).collect::<Vec<_>>();
    let mut x = xy.iter().map(|t| t.0).collect::<Vec<_>>();
    let mut y = xy.iter().map(|t| t.1).collect::<Vec<_>>();
    x.sort();
    y.sort();
    x.dedup();
    y.dedup();
    let mut xy = xy
        .into_iter()
        .map(|(i, j)| (x.binary_search(&i).unwrap(), y.binary_search(&j).unwrap()))
        .collect::<Vec<_>>();
    xy.sort();

    let mut bit = FenwickTree::new(n, 0);
    let mut left_upper = vec![0; n];
    let mut left_lower = vec![0; n];
    for (i, &(_, y)) in xy.iter().enumerate() {
        left_lower[i] = bit.sum(0, y + 1);
        left_upper[i] = bit.sum(y, n);
        bit.add(y, 1);
    }
    let mut bit = FenwickTree::new(n, 0);
    let mut right_upper = vec![0; n];
    let mut right_lower = vec![0; n];
    for (i, &(_, y)) in xy.iter().enumerate().rev() {
        right_lower[i] = bit.sum(0, y + 1);
        right_upper[i] = bit.sum(y, n);
        bit.add(y, 1);
    }

    let mut pow2 = vec![ModInt(1), ModInt(2)];
    for i in 1..n {
        let x = pow2[i] * pow2[1];
        pow2.push(x);
    }

    let mut ans = ModInt(0);
    for i in 0..n {
        ans += pow2[n - 1];

        let remain = n - 1 - left_lower[i] - right_upper[i];
        ans += pow2[remain] * (pow2[left_lower[i]] - 1) * (pow2[right_upper[i]] - 1);

        let remain = n - 1 - left_upper[i] - right_lower[i];
        ans += pow2[remain] * (pow2[left_upper[i]] - 1) * (pow2[right_lower[i]] - 1);

        ans -= (pow2[left_lower[i]] - 1)
            * (pow2[left_upper[i]] - 1)
            * (pow2[right_lower[i]] - 1)
            * (pow2[right_upper[i]] - 1);
    }

    println!("{}", ans.0);
}

/// `FenwickTree` is a data structure that can efficiently update elements
/// and calculate prefix sums in a table of numbers.
/// [https://en.wikipedia.org/wiki/Fenwick_tree](https://en.wikipedia.org/wiki/Fenwick_tree)
pub struct FenwickTree<T> {
    n: usize,
    data: Vec<T>,
    init: T,
}

impl<T: Copy + std::ops::AddAssign + std::ops::Sub<Output = T>> FenwickTree<T> {
    /// Constructs a new `FenwickTree`. The size of `FenwickTree` should be specified by `size`.
    pub fn new(size: usize, init: T) -> FenwickTree<T> {
        FenwickTree {
            n: size + 1,
            data: vec![init; size + 1],
            init: init,
        }
    }

    pub fn add(&mut self, k: usize, value: T) {
        let mut x = k;
        while x < self.n {
            self.data[x] += value;
            x |= x + 1;
        }
    }

    /// Returns a sum of range `[l, r)`
    pub fn sum(&self, l: usize, r: usize) -> T {
        self.sum_one(r) - self.sum_one(l)
    }

    /// Returns a sum of range `[0, k)`
    pub fn sum_one(&self, k: usize) -> T {
        assert!(k < self.n, "k={} n={}", k, self.n);

        let mut result = self.init;
        let mut x = k as i32 - 1;
        while x >= 0 {
            result += self.data[x as usize];
            x = (x & (x + 1)) - 1;
        }

        result
    }
}
pub mod mod_int {
    use super::MOD;
    use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Sub, SubAssign};

    type Num = usize;

    #[derive(Clone, Copy)]
    pub struct ModInt<T: Copy + Clone>(pub T);

    impl Add<ModInt<Num>> for ModInt<Num> {
        type Output = ModInt<Num>;
        fn add(self, rhs: ModInt<Num>) -> ModInt<Num> {
            self + rhs.0
        }
    }

    impl Add<Num> for ModInt<Num> {
        type Output = ModInt<Num>;
        fn add(self, mut rhs: Num) -> ModInt<Num> {
            if rhs >= MOD {
                rhs %= MOD;
            }
            let mut t = rhs + self.0;
            if t >= MOD {
                t = t - MOD;
            }
            ModInt(t)
        }
    }

    impl Sub<Num> for ModInt<Num> {
        type Output = ModInt<Num>;
        fn sub(self, rhs: Num) -> ModInt<Num> {
            let rhs = if rhs >= MOD { rhs % MOD } else { rhs };
            let value = if self.0 < rhs { self.0 + MOD } else { self.0 };
            ModInt(value - rhs)
        }
    }

    impl Sub<ModInt<Num>> for ModInt<Num> {
        type Output = ModInt<Num>;
        fn sub(self, rhs: ModInt<Num>) -> ModInt<Num> {
            self - rhs.0
        }
    }

    impl AddAssign<Num> for ModInt<Num> {
        fn add_assign(&mut self, other: Num) {
            *self = *self + other;
        }
    }
    impl AddAssign<ModInt<Num>> for ModInt<Num> {
        fn add_assign(&mut self, other: ModInt<Num>) {
            *self = *self + other;
        }
    }

    impl SubAssign<Num> for ModInt<Num> {
        fn sub_assign(&mut self, other: Num) {
            *self = *self - other;
        }
    }

    impl SubAssign<ModInt<Num>> for ModInt<Num> {
        fn sub_assign(&mut self, other: ModInt<Num>) {
            *self = *self - other;
        }
    }

    impl Div<Num> for ModInt<Num> {
        type Output = ModInt<Num>;
        fn div(self, mut rhs: Num) -> ModInt<Num> {
            if rhs >= MOD {
                rhs %= MOD;
            }
            self * ModInt(rhs).pow(MOD - 2)
        }
    }

    impl Div<ModInt<Num>> for ModInt<Num> {
        type Output = ModInt<Num>;
        fn div(self, rhs: ModInt<Num>) -> ModInt<Num> {
            self / rhs.0
        }
    }

    impl DivAssign<Num> for ModInt<Num> {
        fn div_assign(&mut self, rhs: Num) {
            *self = *self / rhs
        }
    }
    impl DivAssign<ModInt<Num>> for ModInt<Num> {
        fn div_assign(&mut self, rhs: ModInt<Num>) {
            *self = *self / rhs
        }
    }

    impl Mul<ModInt<Num>> for ModInt<Num> {
        type Output = ModInt<Num>;

        fn mul(self, rhs: ModInt<Num>) -> ModInt<Num> {
            self * rhs.0
        }
    }
    impl Mul<Num> for ModInt<Num> {
        type Output = ModInt<Num>;

        fn mul(self, mut rhs: Num) -> ModInt<Num> {
            if rhs >= MOD {
                rhs %= MOD;
            }
            let t = (self.0 * rhs) % MOD;
            ModInt(t)
        }
    }

    impl MulAssign<Num> for ModInt<Num> {
        fn mul_assign(&mut self, rhs: Num) {
            *self = *self * rhs;
        }
    }

    impl MulAssign<ModInt<Num>> for ModInt<Num> {
        fn mul_assign(&mut self, rhs: ModInt<Num>) {
            *self = *self * rhs;
        }
    }

    impl ModInt<Num> {
        pub fn pow(self, e: Num) -> ModInt<Num> {
            let mut result = ModInt(1);
            let mut cur = self;
            let mut e = e;
            while e > 0 {
                if e & 1 == 1 {
                    result *= cur;
                }
                e >>= 1;
                cur *= cur;
            }
            result
        }
    }
}

pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);

impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
    pub fn new(r: R, w: W) -> Self {
        IO(r, std::io::BufWriter::new(w))
    }
    pub fn write<S: ToString>(&mut self, s: S) {
        use std::io::Write;
        self.1.write(s.to_string().as_bytes()).unwrap();
    }
    pub fn read<T: std::str::FromStr>(&mut self) -> T {
        use std::io::Read;
        let buf = self
            .0
            .by_ref()
            .bytes()
            .map(|b| b.unwrap())
            .skip_while(|&b| b == b' ' || b == b'\n' || b == b'\r' || b == b'\t')
            .take_while(|&b| b != b' ' && b != b'\n' && b != b'\r' && b != b'\t')
            .collect::<Vec<_>>();
        unsafe { std::str::from_utf8_unchecked(&buf) }
            .parse()
            .ok()
            .expect("Parse error.")
    }
    pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
        (0..n).map(|_| self.read()).collect()
    }
    pub fn chars(&mut self) -> Vec<char> {
        self.read::<String>().chars().collect()
    }
}


Measured memory_bytes: 28056