#![allow(non_snake_case, unused_imports)]
use proconio::{fastout, input, marker::*};

#[fastout]
fn main() {
    input! {
        N: usize,
        rR: [(usize, usize); N],
    }

    let mut X = vec![0, 1 << 60];

    for &(r, R) in rR.iter() {
        X.push(r);
        X.push(R);
    }

    let (z, zi) = coordinate_compression(&X);

    let mut cs = vec![0; z.len()];

    for (r, R) in rR {
        let &left = zi.get(&r).unwrap();
        let &right = zi.get(&R).unwrap();

        cs[left] += 1;
        cs[right] -= 1;
    }

    let mut now = 0;
    let mut ans = 0;

    for i in 0..z.len() {
        now += cs[i];
        ans = std::cmp::max(ans, now);
    }

    println!("{}", ans - 1);
}

pub fn coordinate_compression<T: std::cmp::Ord + Clone + Copy>(
    values: &[T],
) -> (Vec<T>, std::collections::BTreeMap<T, usize>) {
    let s: std::collections::BTreeSet<T> = values.iter().cloned().collect();
    let z: Vec<T> = s.iter().cloned().collect();
    let zinv: std::collections::BTreeMap<T, usize> =
        z.iter().enumerate().map(|(i, &v)| (v, i)).collect();
    (z, zinv)
}