#include <iostream>
#include <fstream>
using namespace std;
ifstream f ("permutari.in");
ofstream g ("permutari.out");
int rasp[20];
int n;
bool used[20];
void backtrack(int x)
{
    if(x == n)
    {
        for(int i = 0; i<x; i++)
        {
            g << rasp[i]<< " ";
        }
        g << '\n';
        return;
    }
    for(int i = 1; i<=n; i++)
    {
        if(!used[i])
        {
            rasp[x] = i;
            used[i] = 1;
            backtrack(x+1);
            used[i] = 0;
        }
    }
}
int main()
{
    f >> n;
    backtrack(0);
}