#include <iostream>
#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,v[30];
bool sol[30];
void afis()
{
    for (int i = 1; i <= n; i++) g<<v[i]<<" "; g<<"\n";
}
int permutari(int k)
{
    if (k > n) afis();
    for(int i = 1; i <= n; i++)
    {
        if(!sol[i])
        {
         sol[i] = 1;
         v[k] = i;
         permutari(k+1);
         sol[i]=0;
        }
    }
}
int main()
{
    f>>n;
    permutari(1);
    return 0;
}