#include <fstream>
using namespace std;
int n, st[10], f[10];
ofstream fout ("permutari.out");
void Back (int k)
{
    if (k > n)
    {
        for (int i = 1; i <= n; i++)
            fout << st[i] << " ";
        fout << "\n";
        return;
    }
    for (int i = 1; i <= n; i++)
    {
        if (f[i] == 0)
        {
            f[i] = 1;
            st[k] = i;
            Back(k + 1);
            f[i] = 0;
        }
    }
}
int main()
{
    ifstream fin ("permutari.in");
    fin >> n;
    Back(1);
    return 0;
}