def main():
	seating_capacity()

def seating_capacity():
	inp = input()
	inp_split = inp.split()
	n = int(inp_split[0])
	m = int(inp_split[1])
	k = int(inp_split[2])
	if n >= m + k:
		print('Yes')
	else:
		print('No')


if __name__ == '__main__':
	main()