#include <iostream>
#include <fstream>
#include <string>
#include <cmath>

using namespace std;

int a[303]={0}, b;

ifstream in("input.txt");
ofstream out("output.txt");

void outArray(){
for (int i=a[0];i>0;i--)
out << a[i];
out << endl;
}

int main(){

a[0]=1;
a[1]=1;

in >> b;
for (int j=1; j<=b; j++)
{

    for (int i=1; i<=a[0]; i++)
        a[i] *= 2;

    for (int i=1; i<=a[0]; i++)
        if (a[i] >= 10)
        {
            a[i+1] += (a[i]-a[i]%10)/10;
            a[i] %= 10;
            if (a[0]==i)
                a[0]++;
        }

}

outArray();
return 0;
}