#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(n);++i)
using namespace std;
using ll = long long;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n,m,k;
    cin >> n >> m >> k;
    if(n>=m+k) cout << "Yes";
    else cout << "No";
    cout << endl;
}