#include <iostream>
#include <fstream>

using namespace std;

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

short viz[9], st[9], n;

void Afiseaza()
{
        for(short i = 1; i <= n; fout << st[i++] << " ");
        fout << "\n";
}

void backtracking(int top)
{
    if (top == n + 1)   Afiseaza();
    else
        for(short i = 1; i <= n; i++)
            if(viz[i] == 0)
                {
                st[top] = i;
                viz[i] = 1;
                backtracking(top + 1);
                viz[i] = 0;
                }

}

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