#include <iostream>
#include <fstream>

using namespace std;

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

int n,nr, v[10];
bool folosit[10];

void afis(int pas)
{
    for (int j = 1; j <= n ; j++)
        out << v[j] << " ";
    out<<'\n';
}

void backt (int pas)
{
    if (pas==n+1)afis(pas);
    else
    {
        for(int i = 1; i <= n; i++)
        {
            if (folosit[i] == 0)
            {
                folosit[i] = 1;
                v[pas] = i;
                backt(pas + 1);
                folosit[i] = 0;
            }
        }
    }
}

int main ()
{
    in >> n;
    backt(1);
}