#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <string>
#include <utility>
#include <tuple>
#include <set>
#include <map>
#include <cassert>

using namespace std;

int main() {
	int n, m, k;
	cin >> n >> m >> k;

	bool ok = n >= m+k;
	cout << (ok ? "Yes" : "No") << endl;
	return 0;
}