#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;
using ll = long long;
using ld = long double;

#define all(x)  x.begin(),x.end()
#define v(x) vector<x>
#define nl '\n'
#define fxd(x) fixed << setprecision(x)
template<class t> using ordered_set = tree<t, null_type, less<t>, rb_tree_tag, tree_order_statistics_node_update>;
template<class t> using ordered_multiset = tree<t, null_type, less_equal<t>, rb_tree_tag, tree_order_statistics_node_update>;


int main()
{
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    int n; cin >> n;
    // time | state
    map<ll,ll> mp;
    for (int i = 0; i < n; i++)
    {
        ll a,b; cin >> a >> b;
        mp[a]++;
        mp[b]--;
    }
    ll cur = 0,mx=0;
    for(auto& pair : mp)
    {
        cur += pair.second;
        mx = max(mx,cur);
    }
    cout << mx;
}