#include<iostream>
#include<cmath>

using namespace std;

int main() {
    int n, k;
    cin >> n >> k;
    
    int64_t a, b;
    a = pow(2, n);

    b = pow(2, k);

    int cnt=0;

    while(b*(cnt)<=a){
        cnt++;
    }

    cout << cnt-1 << endl;
}