#include <cstdio>
#define NMax 100005

int v[NMax];

void mul( int A[], int x )
{
    int t=0,i;
        for( i = 1; i <= A[0] || t ; ++i, t/=10 )
        A[i] = ( t += A[i] * x ) % 10;
    A[0] = i -1;
}

int main(){
    freopen("patrate2.in","r",stdin);
    freopen("patrate2.out","w",stdout);

    int i,n;
    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 > 0; --i )
    printf("%d",v[i]);

    printf("\n");


return 0;
}