/* -*- coding: utf-8 -*-
 *
 * 2919.cc:  No.2919 Welcome to The Below Green Contenst - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* main */

int main() {
  int n, m, k;
  scanf("%d%d%d", &n, &m, &k);

  if (m + k <= n) puts("Yes");
  else puts("No");
  
  return 0;
}