#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<int>;
using vs = vector<string>;
using vvi = vector<vi>;
using vvs = vector<vs>;
int main() {
  int a, b, c;
  cin >> b >> c;
  if (a + b >= c)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
