#include <iostream>
#include <fstream>
#include <stdlib.h>
using namespace std;
ifstream fin("damesah.in");
ofstream fout("damesah.out");

int N;

int nrsol;

int sol[15];

bool coloana[15],diagonala_stanga[30],diagonala_dreapta[30];

void Afisare ()
{
    int i;
    for (i=1;i<=N;++i)
    {
        fout << sol[i] << " ";
    }
    fout << '\n';
}

void Back (int k)
{
    if (k==N+1)
    {
        ++nrsol;
        if (nrsol==1)
        {
            Afisare();
        }
    }
    else
    {
        int i;
        for (i=1;i<=N;++i)
        {
            if (coloana[i]==0 && diagonala_stanga[i-k+N-1]==0 && diagonala_dreapta[i+k+1]==0)
            {
                sol[k]=i;
                coloana[i]=diagonala_stanga[i-k+N-1]=diagonala_dreapta[i+k+1]=1;
                Back(k+1);
                coloana[i]=diagonala_stanga[i-k+N-1]=diagonala_dreapta[i+k+1]=0;
            }
        }
    }
}

int main()
{
    fin >> N;
    Back(1);
    fout << nrsol;
    fin.close();
    fout.close();
    return 0;
}