#include <iostream>
#include <vector>

using namespace std;

struct event {
    int time;
    int type;
    // 0 - вход
    // 1 - выход
};

// true, если a < b
bool operator < (event a, event b){
    if (a.time < b.time)
        return true;
    if (a.time > b.time)
        return false;
    if (a.time == b.time){
        if (a.type < b.type){
            return true;
        } else {
            return false;
        }
    }
    return false;
}


int main() {
    int n;
    cin >> n;
    vector <event> events;
    for (int i = 0; i < n; i++){
        int in, out;
        cin >> in >> out;
        event in_event;
        in_event.type = 0;
        in_event.time = in;
        event out_event;
        out_event.type = 1;
        out_event.time = out;
        events.push_back(in_event);
        events.push_back(out_event);
    }

    sort(events.begin(), events.end());
    int visitor_count = 0;
    int max_visitor_count = 0;

    for (int i = 0; i < events.size(); i++){
        if (events[i].type == 0) {
            visitor_count++;
        } else {
            visitor_count--;
        }
        if ( visitor_count > max_visitor_count ) {
            max_visitor_count = visitor_count;
        }
    }

    cout << max_visitor_count << endl;
    return 0;
}