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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("patrate2.in");
ofstream fout("patrate2.out");
void ProdusMic(unsigned long long x[], int n)
{
int i,t=0;
for(i=1;i<=x[0];i++,t/=10)
{
t+=x[i]*n;
x[i]=t%10;
}
for(;t;t/=10)
x[++x[0]]=t%10;
}
void afish(unsigned long long s[]){
for(int j=s[0];j>0;j--)
fout<<s[j];
}
unsigned long long p[10000],i, n, x;
int main()
{
fin>>n;
p[1]=1;
p[0]=1;
for(i=1; i<=n*n-n; i++){
ProdusMic(p,2);
}
for(int i=1;i<=n;i++){
ProdusMic(p,i);
ProdusMic(p,2);}
afish(p);
fin.close();
fout.close();
return 0;
}