#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
using namespace std;

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

void Gen_Lex(int n)
{
    vector<int> v;
    int i;
    for(i = 1; i <= n; i++)
        v.push_back(i);
    do
    {
        for(auto e : v)
            g << e << ' ';
        g << '\n';
    }
    while(next_permutation(v.begin(), v.end()));
}

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