#include<cstdio>
#include<algorithm>
using namespace std;
int n,i,j,m,v[1005];
void mul(int A[],int B)
{
      int i,t=0;
      for (i=1;i<=A[0]||t;i++,t/=10)
              A[i]=(t+=A[i]*B)%10;
      A[0]=i-1;
}
int main()
{
    freopen("patrate2.in","r",stdin);
    freopen("patrate2.out","w",stdout);
    scanf("%d",&n); v[0]=1; v[1]=1;
    for (i=1;i<=n;i++)
    mul(v,i);
    for (i=1;i<=n*n;i++) mul(v,2);
    for (i=v[0];i>=1;i--) printf("%d",v[i]);
    return 0;
}