#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n;
int rasp[10];
int frecv[10];
void bkt(int len)
{
    if(len == n+1)
    {
        for(int i = 1; i <= n; i++)
        {
            fout << rasp[i] << " ";
        }
        fout << "\n";
    }
    for(int i = 1; i <= n; i++)
    {
        if(frecv[i] == 0)
        {
            frecv[i]++;
            rasp[len] = i;
            bkt(len+1);
            frecv[i] = 0;
            rasp[len] = 0;
        }
    }
}
int main()
{
    fin >> n;
    bkt(1);
    return 0;
}