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

#include<atcoder/modint>
using namespace atcoder;
using mint=modint998244353;



int main(){
    
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll N,M,K;
    cin>>N>>M>>K;
    cout<<(N>=M+K?"Yes":"No")<<endl;
}