#include <fstream>
using namespace std;

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

int st[10],n;
bool v[10];

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

void backt(int niv)
{
    if (niv > n)
        afis();
    else
    {
        for (int i = 1; i <= n; ++i)
        {
            if (!v[i])
            {
                st[niv] = i;
                v[i] = true;
                backt(niv + 1);
                v[i] = false;
            }
        }
    }
}

int main()
{
    f >> n;
    backt(1);
    return 0;
}