//1333
#include <iostream>
using namespace std;
int blah[1000050];
int main() {
    int a,n;
    while(cin>>a>>n){
        int x=1;
        blah[1]=a;
        int i=1,j=1;
        while(true){
            int b1=2*blah[i]+1;
            int b2=3*blah[j]+1;
            if(b1<b2){
                blah[++x]=b1;
                i++;
            }
            else if(b2<b1){
                blah[++x]=b2;
                j++;
            }
            else{
                blah[++x]=b2;
                i++;j++;
            }
            if(x>n){
                cout<<blah[x-1]<<endl;
                break;
            }
        }
    }
    return 0;
}