#include <fstream>

using namespace std;

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

int v[9],f[9],n;

void back (int k)
{
    for (int i=1;i<=n;i++)
        if (!f[i])
    {
        v[k]=i;
        f[i]=1;
        if (k<n)
            back(k+1);
        else
        {
            for (int i=1;i<=n;i++)
                cout<<v[i]<<" ";
            cout<<'\n';
        }
        f[i]=0;
    }
}

int main()
{
    cin>>n;
    back (1);
}