#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, S, D;
  cin >> N >> S >> D;
  
  int X[N], Y[N];
  for (int i = 0; i < N; i++) {
    cin >> X[i] >> Y[i];
  }
  
  bool res = false;
  for (int i = 0; i < N; i++) {
    if (X[i] < S) {
      if (Y[i] > D) {
        res = true;
        break;
      }
    }
  }
  
  if (res) cout << "Yes" << endl;
  else cout << "No" << endl;
}
// g++ -std=c++11 a.cpp
#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<map>
#include<set>
#include<unordered_map>
#include<utility>
#include<cmath>
#include<random>
#include<cstring>
#include<queue>
#include<stack>
#include<bitset>
#include<cstdio>
#include<sstream>
#include<random>
#include<iomanip>
#include<assert.h>
#include<typeinfo>
#define loop(i,a,b) for(int i=a;i<b;i++)
#define rep(i,a) loop(i,0,a)
#define FOR(i,a) for(auto i:a)
#define pb push_back
#define all(in) in.begin(),in.end()
#define shosu(x) fixed<<setprecision(x)
#define show1d(v) {rep(_,v.size())cout<<" "<<v[_];cout<<endl;}
#define show2d(v) {rep(__,v.size())show1d(v[__]);}
using namespace std;
//kaewasuretyuui
typedef long long ll;
#define int ll
typedef int Def;
typedef pair<Def,Def> pii;
typedef vector<Def> vi;
typedef vector<vi> vvi;
typedef vector<pii> vp;
typedef vector<vp> vvp;
typedef vector<string> vs;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef pair<Def,pii> pip;
typedef vector<pip>vip;
#define mt make_tuple
typedef tuple<int,int,int> tp;
typedef vector<tp> vt;
typedef vector<vt>vvt;
template<typename A,typename B>bool cmin(A &a,const B &b){return a>b?(a=b,true):false;}
template<typename A,typename B>bool cmax(A &a,const B &b){return a<b?(a=b,true):false;}
const double PI=acos(-1);
const long double EPS=1e-9;
Def inf = sizeof(Def) == sizeof(long long) ? 2e18 : 1e9+10;
int dx[]={-1,0,1,0};
int dy[]={0,1,0,-1};
#define yes cout<<"Yes\n"
#define no cout<<"No\n"

struct edge{int to,cap,rev;};//ikisaki youryou gyakuhen
class MF{//max flow
	public:
	int n;
	vector<vector<edge> >G;//[MAX];
	vi level,iter;//[MAX];
	MF(int size){
		n=size;
		G=vector<vector<edge> >(n);
	}
	void add_edge(int from, int to, int cap){
		edge q={to,cap,int(G[to].size())};
		G[from].push_back(q);
		q={from,0,int(G[from].size()-1)};
		G[to].push_back(q);
	}
	void bfs(int s){
		level=vi(n,-1);
		queue<int>q;
		level[s]=0;
		q.push(s);
		while(!q.empty()){
			int v=q.front();q.pop();
			for(int i=0;i<G[v].size();i++){
				edge &e=G[v][i];
				if(e.cap>0&&level[e.to]<0){
					level[e.to]=level[v]+1;
					q.push(e.to);
				}
			}
		}
	}
	int dfs(int v,int t, int f) {
		if(v==t)return f;
		for(int &i=iter[v];i<G[v].size();i++){
			edge &e=G[v][i];
			if(level[v]>=level[e.to]||e.cap<=0) continue;
			int d =dfs(e.to,t,min(f,e.cap));
			if(d>0){
				e.cap-=d;
				G[e.to][e.rev].cap+=d;
				return d;
			}
		}
		return 0;
	}
	int mf(int s,int t) {//from s to t,ford_fulkerson
		int flow=0;
		while(1){
			bfs(s);
			if(level[t]<0)return flow;
			iter=vi(n);
			int f;
			while((f=dfs(s,t,inf))>0)flow+=f;
		}
	}
};
signed main(){
	ios::sync_with_stdio(false);
	cin.tie(0);

	int n,x,y;
	cin>>n>>x>>y;

	while(n--){
		int a,b;
		cin>>a>>b;
		if(a<x&&b>y){
			yes;
			return 0;
		}
	}
	no;
}
