#include <iostream>
#include <string>
#include <algorithm>
#include <functional>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <tuple>
#include <cstdio>
#include <cmath>
#include <cassert>
#define rep(i, n) for(i = 0; i < n; i++)
#define int long long
using namespace std;

signed main() {
    int n, m, k;
    cin >> n >> m >> k;
    if (m + k <= n) cout << "Yes" << endl;
    else cout << "No" << endl;
    return 0;
}