#include <bits/stdc++.h>

using namespace std;

int a[30], n, v[30];
ifstream fin("permutari.in");
ofstream fout("permutari.out");

void Afis()
{
    int i;
    for (i = 1; i <= n; ++i)
        fout << a[i] << " ";
    fout << "\n";
}

void Gen(int top)
{
    if (top == n + 1) Afis();
    else
        for (int i = 1; i <= n; i++)
        if (v[i] == 0)
        {
            a[top] = i;
            v[i] = 1;
            Gen(top + 1);
            v[i] = 0;
        }
}

int main()
{
    fin >> n;
    Gen(1);
    return 0;
}