#include <bits/stdc++.h>
using namespace std;

#define rep(i, n) for( ll i = 0; i < n; i++ )
using ll = long long;

int main() {
	int n, m, k;
	cin >> n >> m >> k;
	string ans = "No";
	if(n >= m + k) ans = "Yes";
	cout << ans << endl;
}