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

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

int n, s[10], nr = 0;

bool valid(int k)
{
    for(int i = 1; i < k; i++)
        if(s[i] == s[k]) return 0;
    return 1;
}

void afis(int k)
{
    nr++;
    for(int i = 1; i <= k; i++)
        g << s[i] << ' ';
    g << '\n';
}

void bkt()
{
    int k = 1;
    s[k] = 0;
    bool gasit;
    while(k > 0)
    {
        gasit = 0;
        while(s[k] < n && gasit == 0)
        {
            s[k]++;
            gasit = valid(k);
        }
        if(gasit == 1)
            if(k == n)
                afis(k);
            else s[++k] = 0;
        else k--;
    }
}

int main()
{
    f >> n;
    bkt();
    ///cout << "Numarul solutiilor: " << nr;
    f.close();
    g.close();
    return 0;
}