#include <fstream>
using namespace std;

int lgput(int n,int a) {
    int rez=1;
    while(a>0) {
        if(a%2==1)
            rez*=n;
        n=n*n;
        a/=2;
    }
    return rez;
}

void debugPrint(bool on=0) {
    if(!on)
        return;

    //cout<<lgput(3,5)<<"\n";
}

int solve(int n) {
    int sq=n*n,rez=lgput(2,sq);
    for(int i=2; i<=n; i++)
        rez*=i;
    return rez;
}


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

    debugPrint();

    int n;
    cin>>n;

    cout<<solve(n);

    return 0;
}