#include<bits/stdc++.h>
using namespace std;
using ll=long long;
static const ll INF=1000000000000000;
using Graph=vector<vector<ll>>;
ll N,K;
ll d[200005];
void bfs(const Graph &G,ll s){
fill(d,d+N+1,INF);d[s]=0;
  queue<ll>que;que.push(s);
  while(!que.empty()){
  ll v=que.front();que.pop();
    for(auto u:G[v]){
    if(d[u]!=INF)continue;
      d[u]=d[v]+1;que.push(u);
    }
  }
}
int main(){
 cin>>N>>K;
  Graph G(N+1);if(2<=N)G[2].push_back(1);
  for(ll i=3;i<=N;i++){
  G[i].push_back(i-3);
    if(i%2==0)G[i].push_back(i/2);
  }bfs(G,N);
  if(d[1]<=K)cout<<"YES"<<endl;
  else
    cout<<"NO"<<endl;
  return 0;
}