#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)s; i < (int)e; ++i)
#define all(a) (a).begin(), (a).end()

const ll mod = 998244353ll;

int main() {
    cin.tie(nullptr);
    
    ll N, M, K;
    cin >> N >> M >> K;
    
    if (N >= M + K) cout << "Yes\n";
    else cout << "No\n";
}