#include <fstream>

using namespace std;

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

int a[101], n, k;
bool folosit[101];

void bkt(int k)
{
    int i;
    if (k == n+1)
    {
        for (i = 1; i <= n; i++)
            g << a[i] << " ";
        g << "\n";
    }
    for (i = 1; i <= n; i++)
        if (!folosit[i])
        {
            folosit[i] = 1;
            a[k] = i;
            bkt(k+1);
            folosit[i] = 0;
        }
}

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