#include <bits/stdc++.h>

using namespace std;

int main()
{
    ifstream cin("patrate2.in");
    ofstream cout("patrate2.out");
    int n;
    cin >> n;
    int rez = pow(2, n * n);
    for(int i = 1; i <= n; i++)
    {
        rez *= i;
    }
    cout << rez;
    return 0;
}