#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
using namespace std;
using ll = long long int;
template<typename T>
ostream& operator+(ostream& out, const vector<T> &vec){
    for(const auto &x : vec){
        out<<x<<" ";
    }
    out<<"\n";
    return out;
}
template<typename T>
ostream& operator*(ostream& out, const vector<T> &vec){
    for(const auto &x : vec){
        out+x;
    }
    return out;
}
template<typename T>
istream& operator>>(istream& in, vector<T> &vec){
    for(auto &x : vec){
        in>>x;
    }
    return in;
}
void solve(){
    int n;
    cin>>n;
    vector<array<int, 2>> a(n);
    vector<array<int, 2>> events;
    for(auto &[r, R] : a){
        cin>>r>>R;
        if(r == R) continue;
        events.push_back({r, 1});
        events.push_back({R, -1});
    }
    sort(events.begin(), events.end());
    int ans = 0, cnt = 0;
    for(auto &[v, p] : events){
        cnt += p;
        ans = max(ans, cnt);
    }
    cout<<ans - 1<<"\n";
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    solve();
}