#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
vector <int> v;
int n,f[20];
void back(int k)
{
    if(k==n)
    {
        for(auto x:v)
        {
            fout<<x<<" ";
        }
        fout<<'\n';
        return;
    }
    for(int i=1;i<=n;i++)
    {
        if(f[i]==0)
        {
            f[i]=1;
            v.push_back(i);
            back(k+1);
            f[i]=0;
            v.pop_back();
        }
    }
}
int main()
{
    fin>>n;
    back(0);
    fin.close();
    fout.close();
    return 0;
}