#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

vector <int> v;

ifstream f("patrate2.in");
ofstream g("patrate2.out");

void inmultire (int x)
{
    int t=0;
    for(int i=0; i < (int)v.size();i++)
    {
        v[i] = v[i] * x + t;
        t = v[i] / 10;
        v[i] = v[i] % 10;
        if(t>0 && i == (int)v.size()-1) v.push_back(0);
    }
}

int main()
{
    int n;
    f>>n;
    v.push_back(1);
    for(int i=1;i<=n*n;i++)
        inmultire(2);
    for(int i=2;i<=n;i++)
        inmultire(i);
    for(int i=(int)v.size()-1; i>=0 ;i--)
        g<<v[i];
    return 0;
}