#include <bits/stdc++.h>

int main() {
  using namespace std;
  cin.tie(nullptr)->sync_with_stdio(false);
  int n;
  cin >> n;
  vector<int> a(n), b(n);
  for (int i = 0; i < n; ++i) cin >> a[i] >> b[i];
  vector<int> order(n);
  iota(begin(order), end(order), 0);
  sort(begin(order), end(order), [&](int i, int j) { return a[i] + b[i] < a[j] + b[j]; });
  int64_t sum = 0;
  for (int i : order) {
    if (sum > b[i]) {
      cout << "No\n";
      exit(0);
    }
    sum += a[i];
  }
  cout << "Yes\n";
}