#include <iostream>
#include <fstream>

#define maxn 1073

using namespace std;

int n, *solutii= new int[maxn], *viz= new int[maxn];

ofstream out("permutari.out");

void afisare()
{

    for (int i=0;i<n;i++)
        out<<solutii[i]<<" ";
    out<<"\n";
}

void back(int k)
{
    if (k==n)
        {
                 afisare();
                 return;
        }
    else
    {
        for (int i=1;i<=n;i++)
            if (!viz[i])
                {
                    solutii[k]=i;
                    viz[i]=1;
                    back(k+1);
                    viz[i]=0;
                }
    }
}

int main()
{
    ifstream in("permutari.in");
    in>>n;

    for (int i=0;i<=n;i++)
        viz[i]=0;

    back(0);






}