#include <iostream>
#include <fstream>
#include <algorithm>

using namespace std;

ifstream fin("damesah.in");
ofstream fout("damesah.out");

int v[15], n, nr;
bool t[15], md[55], sd[55];

void Afis()
{
    nr = 1;
    for (int i = 1; i <= n; i++)
        fout << v[i] << " ";
    fout << "\n";
}

void BK(int k)
{
    for (int i = 1; i <= n; i++)
    {
        v[k] = i;
        if (!t[i] && !md[i-k+n-1] && !sd[k+i])
        {
            t[i] = md[i-k+n-1] = sd[k+i] = true;
            if (k == n)
            {
                nr++;
                if (nr == 1)
                    Afis();
            }
            else BK(k + 1);
            t[i] = md[i-k+n-1] = sd[k+i] = false;
        }
    }
}

int main()
{
    fin >> n;
    BK(1);
    fout << nr << "\n";
    fin.close();
    fout.close();
    return 0;
}