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

void solve() {
    ll n, k;
    cin >> n >> k;
    ll L = 1, R = 1;
    rep(i, 0, k) {
        ll nL = min(L+3, L*2);
        ll nR = max(R+3, R*2);
        L = nL;
        R = nR;
    }
    if(L <= n && n <= R) cout << "YES\n";
    else cout << "NO\n";
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}