#include <fstream>

using namespace std;

int n, st[20], viz[20];

ofstream fout ("permutari.out");

void Citire()
{
    ifstream fin("permutari.in");
    fin >> n;
    fin.close();
}

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

void Back(int k)
{
    int i;
    if (k == n + 1) Afisare();
    else for (i = 1; i <= n; i++)
            if (viz[i] == 0)
            {
                viz[i] = 1;
                st[k] = i;
                Back(k + 1);
                viz[i] = 0;
            }
}

int main()
{
    Citire();
    Back(1);
    fout.close();
    return 0;
}