#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;
//using mint = modint1000000007;
//using mint = modint998244353;

struct ST {
  ll A, B;
};
bool operator<(const ST& a, const ST& b){
  if(a.A + a.B == b.A + b.B) return a.A < b.A;
  return a.A + a.B < b.A + b.B;
}

int main(){
  int N;
  cin >> N;
  vector<ST> v(N);
  rep(i,N){
    cin >> v[i].A >> v[i].B;
  }
  sort(ALLOF(v));

  ll W = 0;
  rep(i,v.size()){
    if(W > v[i].B){
      cout << "No" << endl;
      return 0;
    }

    W += v[i].A;
  }

  cout << "Yes" << endl;
  
  return 0;
}