#include <fstream>
#include <vector>
using namespace std;

ifstream cin("permutari.in");
ofstream cout("permutari.out");

vector<int> v;
int frv[9],n;

void backtracking(int poz){
    if(poz==n+1){
        for(int i=0;i<v.size();i++){
            cout<<v[i]<<" ";
        }
        cout<<"\n";
        return ;
    }
    for(int j=1;j<=n;j++){
        if(!frv[j]){
            frv[j]=1;
            v.push_back(j);
            backtracking(poz+1);
            v.pop_back();
            frv[j]=0;
        }
    }
}

int main()
{

    cin>>n;
    backtracking(1);
    return 0;
}