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#include<fstream>
#include<cmath>
using namespace std;
ifstream fin ("damesah.in");
ofstream fout ("damesah.out");
int a[15],n,nr;
void afisare (int l)
{
for( int i=1;i<=l;i++)
fout<<a[i]<<" ";
}
bool verifica ( int l)
{
for( int j=1;j<l;j++)
{
int b= fabs(a[j]-a[l]);
if(b==l-j || a[j]==a[l])
return false;
}
return true;
}
void dame(int n,int k)
{
if(k==n+1)
return;
else
for( int i=1;i<=n;i++)
{
a[k]=i;
if(verifica(k) )
{
if(k==n && !nr)
{
afisare(k);
nr++;
}
else if(k==n)
nr++;
dame(n,k+1);
}
}
}
int main()
{
fin>>n;
nr=0;
dame(n,1);
fout<<"\n";
fout<<nr;
}