Shared code

#include <bits/stdc++.h>
using namespace std;
#define LagaKar ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define pb push_back
#define pf push_front
#define pob pop_back
#define pof pop_front
#define mp make_pair
#define fi first
#define se second
#define precise(ans)  cout<<fixed<<setprecision(15)<<ans
#define fo(i,n) for(ll i=0;i<n;i++)
#define Fo(i,k,n) for(ll i=k;k<n?i<n:i>n;k<n?i+=1:i-=1)
#define tr(it, a) for(auto it = a.begin(); it != a.end(); it++)
#define sz(x) ((ll)(x).size())
#define all(x) x.begin(), x.end()
#define lb lower_bound
#define ub upper_bound
#define MAX(x) *max_element(all(x))
#define MIN(x) *min_element(all(x))
#define SUM(x) accumulate(all(x), 0LL)
#define CNT(x) __builtin_popcountll(x)
#define endl "\n"
#define PI 3.1415926535897932384626
#define MOD 1000000007
#define MOD1 998244353
typedef long long ll; typedef unsigned long long ull; typedef long double lld;
typedef pair<ll, ll>  pl;typedef vector<ll>  vl;typedef vector<vl>  vvl; typedef vector<pl>  vpl;
template <typename T> using prq_mx  = priority_queue<T>; 
template <typename T> using prq_mn = priority_queue<T, vector<T>, greater<T>>;
const double eps=1e-9;const ll INF=(ll)1e9;const ll inf64=2e18;const ll INF64=9e18;
#ifdef hydracody
    #include <C:\Users\Anurag Dwivedi\Desktop\cpc\debug.h>
#else
#define debug(x)
#endif


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~




/////////////////////////////////////////////////////////////////////////////////////////////////










void  chal(){
  ll n;
  cin>>n;
  vpl aa(n);
  fo(i,n){
    cin>>aa[i].fi>>aa[i].se;
  }
  sort(all(aa));
  ll ans=0;
  fo(i,n){
    ll s=i,e=n-1,ans2=i;
    while(s<=e){
      ll mid=s+(e-s)/2;
      if(aa[mid].fi<=aa[i].se){
        ans2=mid;
        s=mid+1;
      }else{
        e=mid-1;
      }
    }
    ans=max(ans,ans2-i+1);
  }
  cout<<ans<<endl;














 






 
}





//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int32_t main() {
  LagaKar;
#ifdef hydracody
  freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); freopen("error.txt", "w", stderr);
#endif
  ll  t; t = 1;
  // cin>>t;
  for (ll i = 1; i <= t; i++) {
    chal();
  } return 0;
}