#include <fstream>

using namespace std;

ofstream fout("permutari.out");
int n, st[9];
bool viz[9];

void Backtracking(int top)
{
    if(top > n)
    {
        for(int i = 1; i < top; i++)
            fout << st[i] << " ";
        fout << "\n";
    }
    else
        for(int i = 1; i <= n; i++)
            if(!viz[i])
            {
                st[top] = i;
                viz[i] = true;
                Backtracking(top + 1);
                viz[i] = false;
            }
}

int main()
{
    ifstream fin("permutari.in");
    fin >> n;
    fin.close();
    Backtracking(1);
    fout.close();
    return 0;
}