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#inlclude<fstream>
using namespace std;
ifstream in("patrate2.in");
ofstream out("patrate2.out");
int n,A[10111];
void(int tmp){
int t;
for(t=0, int j=1; j<=A[0];++j){
A[j]=A[j]*tmp+t;
t=A[j]/10;
A[j]%=10;
}
while(t){
A[++A[0]]=t%10;
t/=10;
}
}
int main(){
A[0]=A[1]=1;
in>>n;
for(int i=2;i<=n;++i){
imultire(i);
}
for(int i=1;i<n*n;++i){
inmultire(2);
}
for(i=A[0];i;--i){
out<<A[i];
}
return 0;
}