#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using pll=pair<ll, ll>;

int main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    ll n; cin >> n;
    vector<ll> vec(400001);
    for (ll i=0; i<n; i++){
        ll a, b; cin >> a >> b;
        vec[a-1]++;
        vec[b]--;
    }
    ll curr=0;
    ll out=0;
    for (ll i=0; i<400001; i++){
        curr+=vec[i];
        out=max(out, curr);
    }
    cout << out;
}