#include <iostream>
#include <fstream>

using namespace std;

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

int sol[21],n,uz[21];
void afisare()
{
    for(int i=1;i<=n;i++) out<<sol[i]<<" ";
    out<<'\n';
}
void back(int k)
{
    if(k==n+1) afisare();
    else
    {
        for(int i=1;i<=n;i++)
        {
           if(uz[i]==0)
           {
               uz[i]=1;
               sol[k]=i;
               back(k+1);
               uz[i]=0;
           }
        }
    }
}
int main()
{
    in>>n;
    back(1);
    return 0;
}