#include <iostream>
#include <fstream>

using namespace std;

ifstream d("permutari.in");
ofstream g("permutari.out");

int n,sol[50],f[50];

void afisare()
{
    for(int i=1;i<=n;i=i+1){
        g<<sol[i]<<" ";
    }
    g<<"\n";
}

int bktr(int k)
{
    if(k>n){
        afisare();
    }
    for(int i=1;i<=n;i=i=1){
        if(!f[i]){
            sol[k]=i;
            f[i]=1;
            bktr(k+1);
            f[i]=0;
        }
    }
}

int main()
{
    d>>n;
    bktr(1);
    return 0;
}