import heapq 
from heapq import heappop,heappush,heapify
from sys import stdin, setrecursionlimit
input = stdin.readline
readline = stdin.readline

from collections import deque
d=deque()

N,M,K=map(int,input().split())
#A=list(map(int, input().split()))
if M+K<=N:
  print('Yes')
else:
  print('No')