#include <iostream>
#include <fstream>
using namespace std;
int v[35000];
int v2[35000];
void init(int a, int v[])
{
    int cifre = 1, ca = a;
    for (; ca; cifre++, ca/=10)
    v[0] = cifre;
    ca = a;
    for (int i = 1; i <= v[0]; i++, a/=10)
        v[i] = a%10;
    a = ca;
}
void imnu(int v[], int a)
{
    int t;
    t = 0;
    for (int i = 1; i <= v[0]; i++, t/=10)
    {
        t+=v[i]*a;
        v[i] = t%10;
    }
    for (; t; t/=10)
    {
        v[0]++;
        v[v[0]] = t%10;
    }
}
int main ()
{   ifstream read("tamplar.in");
    ofstream write("tamplar.out");
    int a=1, p,pi;
    read>> p;
    init (a, v);
    init (a,v2);
    for (int x = 1 ;x <= p*p; x++){


         imnu(v2, 2);
    }
    for(int x=1;x<=p;x++)
        imnu(v2,x);



   for (int i = v2[0]; i > 0; i--)
        write << v2[i];
    return 0;
}