#include <iostream>
#include <fstream>
#include <bitset>

using namespace std;

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

const int maxn = 15;

int n;
pair<int, int> regina[maxn];
int cnt;
bitset <maxn> col;
bitset <2*maxn> dp, ds;

void afisare() {
    ++ cnt;
    if(cnt == 1) {
        for(int i = 1 ; i <= n ; ++ i)
            fout << regina[i].second << ' ';
        fout << '\n';
    }
}

inline int mabs(int x) {
    if(x < 0)
        return -x;
    return x;
}

void back(int linie) {
    if(linie == n + 1) {
        afisare();
        return ;
    }
    for(int coloana = 1 ; coloana <= n ; ++ coloana) {
        if(!col[coloana] &&   !dp[linie + coloana - 1] && !ds[linie + n - coloana]) {
            regina[linie] = make_pair(linie, coloana);
            col[coloana] = 1;
            dp[linie + coloana - 1] = 1;
            ds[linie + n - coloana] = 1;
            back(linie + 1);
            col[coloana] = 0;
            dp[linie + coloana - 1] = 0;
            ds[linie + n - coloana] = 0;
        }
    }
}

int main() {
    fin >> n;
    back(1);
    fout << cnt << '\n';
}