#include <fstream>

using namespace std;

ifstream cin("patrate2.in");
ofstream cout("patrate2.out");

int main()
{
    long long fact=1,putere=1;
    int n,i;
    cin>>n;
    for(i=1;i<=n;i++)
    {
        fact=fact*i;
        putere=putere*4;
    }
    cout<<fact*putere;
    return 0;
}