#include <iostream>
#include <fstream>
#include <math.h>

using namespace std;
long int v[1000005];

int factorial(int p)
{
    long long int i,j,s=0,x=1,y=5,f;
    p=p*10;
    for(i=1;i<=p;i++)
        for(j=1;j<=p;j++)
            if(v[i]*v[j])
}


int main()
{
    ifstream fin("factorial.in");
    ofstream fout("factorial.out");
    long long int p,n;
    fin>>p;
    n=factorial(p);
    fout<<n;
    fin.close();
    fout.close();
}