#include <fstream>
#define MAX 9
using namespace std;

int P[MAX], n;

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

void Afiseaza()
{
    for(int i = 1; i <= n; i++)
        fout << P[i] << " ";
    fout << '\n';
}

void permutari(int k){
    if(k == n+1)
        Afiseaza();
    else
    {
        for(int i = 1, ok = 1; i <= n; i++)
        {
            if(P[k-1] == i) ok = 0;
            if(ok)
            {
                P[k] = i;
                permutari(k+1);
            }
        }
    }
}

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