#include <stdio.h>
int A[1020];
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()
{
	int n,i,b;
	A[0]=1; A[1]=1;
	freopen("patrate2.in", "r",stdin);
	freopen("patrate2.out", "w",stdout);
	scanf("%d", &n);
	b=n*n;
	
	/*while (b!=0)  
	if (b%2==1) { rez=(rez*a)%c; b=b-1;}  
	else { a=(a*a)%c; b=b/2;} */
	for(i=1;i<=b;++i)
		mul(A,2);
	for(i=1;i<=n;++i)
		mul(A,i);
	
	for(i=A[0];i>=1;--i)
		printf("%d", A[i]);
	
	//for(i=rez[0];i>=1;--i)
	//	printf("%d", rez[i]);
	return 0;
}

//2^(N*N)*N!