#include <iostream>
#include <cmath>
#include <stack>
#include <iomanip>
#include <limits>
#include <queue>
#include <map>
#include <set>
#include<algorithm>
#include<deque>
using namespace std;
#define rep(i, n) for (int i = 0;i < (n); ++i)
#define Yes cout << "Yes" << endl
#define No cout << "No" << endl
#define vi vector<int>
#define vvi vector<vector<int>>
#define vl vector<long long> 
#define vvl vector<vector<long long>>
#define vs vector<string>
#define vc vector<char>
#define vvc vector<vector<char>>
#define vb vector<bool>
#define vvb vector<vector<bool>> 
using ll = long long;
using P = pair<ll,ll>;
void chmin(ll &a,ll b){
    a = min(a,b);
}
void chmax(int &a,int b){
    a = max(a,b);
} 

const ll INF = 2e18;

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

    ll n,k,m;
    cin >> n >> m >> k;
    if(m+k <= n)Yes;
    else No;
    return 0;
}