#include <stdio.h>
#include <string.h>
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;
}
void mul(int A[], int B[])
{
      int i, j, t, C[10000];
      memset(C, 0, sizeof(C));
      for (i = 1; i <= A[0]; i++)
      {
              for (t=0, j=1; j <= B[0] || t; j++, t/=10)
                      C[i+j-1]=(t+=C[i+j-1]+A[i]*B[j])%10;
              if (i + j - 2 > C[0]) C[0] = i + j - 2;
      }
      memcpy(A, C, sizeof(C));
}

int main(){
	int v[10001],n,i,w[10001];
	freopen("patrate2.in","r",stdin);
	freopen("patrate2.out","w",stdout);
	scanf("%d",&n);
	v[0]=w[0]=1;
	v[1]=w[1]=1;
	for(i=1;i<=n*n;i++)
		mul(v,2);
	for(i=2;i<=n;i++)
		mul(w,i);
	mul(v,w);
	for(i=v[0];i>=1;i--)
		printf("%d",v[i]);
	return 0;
	fclose(stdout);
}