#include <fstream>
using namespace std;

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

int n,p,v[20],viz[20];

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



int main()
{
    f>>n;
    back(1);
    f.close();
    q.close();
}