#include <iostream>
#include <fstream>

using namespace std;

int n, a[100];
bool used[100];

ifstream fin ("permutari.in");
ofstream fout ("permutari.out");

void bacc(int k)
{
    if(k == n+1)
    {
        for(int i = 1; i <= n; i++)
            fout << a[i] << " ";
        fout << "\n";
        return;
    }
    for(int i = 1; i <= n; i++)
    {
        if(used[i])
            continue;
        a[k] = i;
        used[i] = true;
        bacc(k+1);
        used[i] = false;
    }
}

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