#![allow(unused_imports)]
#![allow(non_snake_case)]
use std::cmp::*;
use std::collections::*;
use std::io::Write;

#[allow(unused_macros)]
macro_rules! debug {
    ($($e:expr),*) => {
        #[cfg(debug_assertions)]
        $({
            let (e, mut err) = (stringify!($e), std::io::stderr());
            writeln!(err, "{} = {:?}", e, $e).unwrap()
        })*
    };
}

fn main() {
    let n = read::<usize>();
    let big_int = 998244353i64;
    let mut points = vec![];
    for i in 0..n {
        let v = read_vec::<i64>();
        points.push((v[0], v[1]));
    }
    points.sort();
    let ys = points.iter().map(|p| p.1).collect::<Vec<_>>();
    let ys = argsort(&ys);
    debug!(ys);

    let mut seg = SegTree::new(n, 0i64, |a, b| a + b);

    let mut x_smaller_y_smaller = vec![0; n];
    let mut x_smaller_y_larger = vec![0; n];
    for i in 0..n {
        x_smaller_y_smaller[i] = seg.query(0, ys[i]);
        x_smaller_y_larger[i] = seg.query(ys[i], n);
        seg.update(ys[i], 1);
    }

    let mut seg = SegTree::new(n, 0i64, |a, b| a + b);
    let mut x_larger_y_smaller = vec![0; n];
    let mut x_larger_y_larger = vec![0; n];
    for i in (0..n).rev() {
        x_larger_y_smaller[i] = seg.query(0, ys[i]);
        x_larger_y_larger[i] = seg.query(ys[i], n);
        seg.update(ys[i], 1);
    }

    let mut ans = ModInt::new(0);
    for i in 0..n {
        assert_eq!(
            x_smaller_y_smaller[i]
                + x_larger_y_larger[i]
                + x_smaller_y_larger[i]
                + x_larger_y_smaller[i],
            n as i64 - 1
        );
        let ox1 = ModInt::new(2).pow(x_smaller_y_smaller[i]);
        let o1 = ox1 - ModInt::new(1);
        let ox2 = ModInt::new(2).pow(x_larger_y_larger[i]);
        let o2 = ox2 - ModInt::new(1);
        let ox3 = ModInt::new(2).pow(x_smaller_y_larger[i]);
        let o3 = ox3 - 1;
        let ox4 = ModInt::new(2).pow(x_larger_y_smaller[i]);
        let o4 = ox4 - 1;
        ans += o1 * o2 * ox3 * ox4;
        ans += ox1 * ox2 * o3 * o4;
        ans -= o1 * o2 * o3 * o4;
        // debug!(ox1, ox2, ox3, ox4);
        ans += ModInt::new(2).pow(n as i64 - 1);
        // debug!(ans);
    }
    println!("{}", ans);
}

fn pow_m(x: i64, p: i64, m: i64) -> i64 {
    if p == 0 {
        1
    } else if p % 2 == 0 {
        let t = pow_m(x, p / 2, m);
        t * t % m
    } else {
        let t = pow_m(x, p / 2, m);
        t * t % m * x % m
    }
}

fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}

fn argsort<T: std::cmp::Ord + std::marker::Copy>(v: &Vec<T>) -> Vec<usize> {
    let mut sort_v = Vec::new();
    for i in 0..v.len() {
        sort_v.push((v[i], i));
    }
    sort_v.sort();
    sort_v.iter().map(|x| x.1).collect::<Vec<usize>>()
}

struct SegTree<I, BiOp> {
    n: usize,
    dat: Vec<I>,
    op: BiOp,
    e: I,
}

impl<I, BiOp> SegTree<I, BiOp>
where
    BiOp: Fn(I, I) -> I,
    I: Copy,
{
    pub fn new(n_: usize, e: I, op: BiOp) -> Self {
        let mut n = 1;
        while n < n_ {
            n *= 2;
        } // n is a power of 2
        SegTree {
            n: n,
            dat: vec![e; 2 * n - 1],
            op: op,
            e: e,
        }
    }
    /* ary[k] <- v */
    pub fn update(&mut self, idx: usize, v: I) {
        let mut k = idx + self.n - 1;
        self.dat[k] = v;
        while k > 0 {
            k = (k - 1) / 2;
            self.dat[k] = (self.op)(self.dat[2 * k + 1], self.dat[2 * k + 2]);
        }
    }
    /* [a, b) (note: half-inclusive)
     * http://proc-cpuinfo.fixstars.com/2017/07/optimize-segment-tree/ */
    pub fn query(&self, mut a: usize, mut b: usize) -> I {
        let mut left = self.e;
        let mut right = self.e;
        a += self.n - 1;
        b += self.n - 1;
        while a < b {
            if (a & 1) == 0 {
                left = (self.op)(left, self.dat[a]);
            }
            if (b & 1) == 0 {
                right = (self.op)(self.dat[b - 1], right);
            }
            a = a / 2;
            b = (b - 1) / 2;
        }
        (self.op)(left, right)
    }
}

mod mod_int {
    use std::ops::*;
    pub trait Mod: Copy {
        fn m() -> i64;
    }
    #[derive(Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
    pub struct ModInt<M> {
        pub x: i64,
        phantom: ::std::marker::PhantomData<M>,
    }
    impl<M: Mod> ModInt<M> {
        // x >= 0
        pub fn new(x: i64) -> Self {
            ModInt::new_internal(x % M::m())
        }
        fn new_internal(x: i64) -> Self {
            ModInt {
                x: x,
                phantom: ::std::marker::PhantomData,
            }
        }
        pub fn pow(self, mut e: i64) -> Self {
            debug_assert!(e >= 0);
            let mut sum = ModInt::new_internal(1);
            let mut cur = self;
            while e > 0 {
                if e % 2 != 0 {
                    sum *= cur;
                }
                cur *= cur;
                e /= 2;
            }
            sum
        }
        #[allow(dead_code)]
        pub fn inv(self) -> Self {
            self.pow(M::m() - 2)
        }
    }
    impl<M: Mod, T: Into<ModInt<M>>> Add<T> for ModInt<M> {
        type Output = Self;
        fn add(self, other: T) -> Self {
            let other = other.into();
            let mut sum = self.x + other.x;
            if sum >= M::m() {
                sum -= M::m();
            }
            ModInt::new_internal(sum)
        }
    }
    impl<M: Mod, T: Into<ModInt<M>>> Sub<T> for ModInt<M> {
        type Output = Self;
        fn sub(self, other: T) -> Self {
            let other = other.into();
            let mut sum = self.x - other.x;
            if sum < 0 {
                sum += M::m();
            }
            ModInt::new_internal(sum)
        }
    }
    impl<M: Mod, T: Into<ModInt<M>>> Mul<T> for ModInt<M> {
        type Output = Self;
        fn mul(self, other: T) -> Self {
            ModInt::new(self.x * other.into().x % M::m())
        }
    }
    impl<M: Mod, T: Into<ModInt<M>>> AddAssign<T> for ModInt<M> {
        fn add_assign(&mut self, other: T) {
            *self = *self + other;
        }
    }
    impl<M: Mod, T: Into<ModInt<M>>> SubAssign<T> for ModInt<M> {
        fn sub_assign(&mut self, other: T) {
            *self = *self - other;
        }
    }
    impl<M: Mod, T: Into<ModInt<M>>> MulAssign<T> for ModInt<M> {
        fn mul_assign(&mut self, other: T) {
            *self = *self * other;
        }
    }
    impl<M: Mod> Neg for ModInt<M> {
        type Output = Self;
        fn neg(self) -> Self {
            ModInt::new(0) - self
        }
    }
    impl<M> ::std::fmt::Display for ModInt<M> {
        fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
            self.x.fmt(f)
        }
    }
    impl<M: Mod> ::std::fmt::Debug for ModInt<M> {
        fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
            let (mut a, mut b, _) = red(self.x, M::m());
            if b < 0 {
                a = -a;
                b = -b;
            }
            write!(f, "{}/{}", a, b)
        }
    }
    impl<M: Mod> From<i64> for ModInt<M> {
        fn from(x: i64) -> Self {
            Self::new(x)
        }
    }
    // Finds the simplest fraction x/y congruent to r mod p.
    // The return value (x, y, z) satisfies x = y * r + z * p.
    fn red(r: i64, p: i64) -> (i64, i64, i64) {
        if r.abs() <= 10000 {
            return (r, 1, 0);
        }
        let mut nxt_r = p % r;
        let mut q = p / r;
        if 2 * nxt_r >= r {
            nxt_r -= r;
            q += 1;
        }
        if 2 * nxt_r <= -r {
            nxt_r += r;
            q -= 1;
        }
        let (x, z, y) = red(nxt_r, r);
        (x, y - q * z, z)
    }
} // mod mod_int

macro_rules! define_mod {
    ($struct_name:ident, $modulo:expr) => {
        #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
        struct $struct_name {}
        impl mod_int::Mod for $struct_name {
            fn m() -> i64 {
                $modulo
            }
        }
    };
}
const MOD: i64 = 998_244_353;
define_mod!(P, MOD);
type ModInt = mod_int::ModInt<P>;


Measured memory_bytes: 27524