#include<iostream>
#include<vector>
#include<algorithm>

using namespace std;
using ll = long long;

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

    ll n,m,k;
    cin>>n>>m>>k;
    if(n>=m+k) cout<<"Yes\n";
    else cout<<"No\n";
}