#include<fstream>

using namespace std;

int a[30], viz[30], n;
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 << a[i] << " ";
    fout << "\n";
}

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

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