#include <algorithm>
#include <iostream>
#include <fstream>
using namespace std;

ifstream f("damesah.in");
ofstream g("damesah.out");

int n;
int x[15];
int nrsol = 0;

void print()
{
    if (nrsol == 0) {
        for(int i = 1; i <= n; i++) {
            g << x[i] << ' ';
        }
        g << endl;
    }
    nrsol++;
}

bool check(int n) {
    if (n == 1) {
        return true;
    }

    for (int i = 1; i < n; i++) {
        if (x[i] == x[n] || abs(i - n) == abs(x[i] - x[n])) {
            return false;
        }
    }
    return true;
}

void back(int k = 1) {
    for (int i = 1; i <= n; i++) {
        x[k] = i;

        if (check(k) == false) {
            continue;
        }

        if (k < n) {
            back(k + 1);
        } else {
            print();
        }
    }
}

int main()
{
    f >> n;
    back();
    g << nrsol << endl;

    return 0;
}