#include <iostream>
#include <cmath>
#include <fstream>
using namespace std;
ifstream fin("damesah.in");
ofstream fout("damesah.out");
int n, x[101], nrsol = 0,prim;

bool valid(int k)
{
    for(int i = 1; i < k; i++)
        if(x[k] == x[i] || k - i == abs(x[k] - x[i]))
            return 0;
    return 1;
}

void afis()
{
    for(int i = 1; i <= n; i++)
        fout << x[i] << ' ';
    fout << endl;
}

void backt()
{
    int k = 1;
    x[1] = 0;
    while(k > 0)
        if(x[k] < n) ///mai avem elemente
        {
            x[k]++; ///...cautare
            if(valid(k)) ///se verifica conditiile de continuare (v.c.c.)
            {
                if(k == n) ///este solutie
                {if(prim==0)
                    {afis();
                    prim=1;
                    }
                    nrsol++;
                    k--; ///se poate forta revenirea
                }
                else
                    x[++k] = 0; ///avansare + init
            }
        }
        else
            k--; ///revenire
}

int main()
{
    fin >> n;
    backt();
    fout << nrsol;
    return 0;
}