typedef long long ll;
typedef long double ld;

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

signed main() {
    ll n,m,k;
    std::cin >> n>>m>>k;
    if(n>=m+k){
        std::cout << "Yes" << std::endl;
    }else{
        std::cout << "No" << std::endl;
    }
};