# include <fstream>

using namespace std;

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

int n;
int v[9];

int verifica (int k)
{
    for (int i = 1; i <= k - 1; i++)
        if (v[i] == v[k])
            return 0;

    return 1;
}

void backtracking (int k)
{
    if (k == n + 1)
    {
        for (int i = 1; i <= n; i++)
            out << v[i] << ' ';

        out << '\n';

        return;
    }

    for (int i = 1; i <= n; i++)
    {
        v[k] = i;

        if (verifica(k)) backtracking(k + 1);
    }
}

int main()
{
    in >> n;

    backtracking(1);

    return 0;
}