#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
using ll = long long;

int N;
int main(void){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    cin >> N;
    vector<pair<int, int>> A;
    for(int i = 0;i < N;i++){
        int l, r; cin >> l >> r;
        A.push_back({l, 1});
        A.push_back({r, -1});
    }
    sort(A.begin(), A.end());
    int cnt = 0, ans = 0;
    for(auto [x, t] : A){
        cnt += t;
        ans = max(ans, cnt);
    }
    cout << ans - 1 << endl;
    return 0;
}