#include<fstream.h>

int main(){
ifstream fin("stramosi.in");
ofstream fout("stramosi.out");
int p,q,rr,count,varza,stramos,v[101];
fin>>p>>q;
stramos=p;

while (q>0) {
rr=1; count=0; varza=q;
while (varza>0) {count++; varza/=2;rr*=2;} rr/=2; count--;
      q-=rr;
      stramos=v[count][stramos];
      rr/=2;
      count--;
   }
  fout<<stramos<<'\n';
return 0;
}