#include <iostream>
#include <fstream>
#include <vector>

using namespace std;
vector<int> rez;
int used[10005];
int n,len;
void back_tracking(int poz)
{
    if(poz==n+1)
    {
        for(auto x : rez)
            cout<<x<<" ";
        cout<<'\n';
        return;
    }
    for(int i=1;i<=n;i++)
    {
        if(used[i]==false)
        {
            rez.push_back(i);
            used[i]=true;
            back_tracking(poz+1);

            rez.pop_back();
            used[i]=false;
        }
    }
}

int main()
{
    ifstream cin("permutari.in");
    ofstream cout("permutari.out");
    cin>>n;
    back_tracking(1);



    return 0;
}