#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <math.h>
#include <iomanip>
using namespace std;
int R, N, M;
double cut_line(int index) {
	cin >> R >> N >> M;
	if (R + N >= M) cout << "Yes" << endl;
	else cout << "No" << endl;
	return 0;
}