#include <fstream>

using namespace std;

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

int n;
int a[15];

void back(int k)
{
    int i,j;
    bool ok;
    if(k==n)
    {
        for(i=1;i<=n;i++) out<<a[i]<<" ";
        out<<"\n";
    }else{
        for(i=1;i<=n;i++)
        {
            ok=1;
            for(j=1;j<=k;j++)
            {
                if(a[j]==i)
                {
                    ok=0;
                    break;
                }
            }
            if(ok)
            {
                a[k+1]=i;
                back(k+1);
            }
        }
    }
}
int main()
{
    in>>n;
    back(0);
    in.close();
    out.close();
    return 0;
}