#include <fstream>

using namespace std;
int n,ans[20],ap[100];
ifstream f("permutari.in");
ofstream g("permutari.out");
void back(int k)
{

    if(k == n)
    {
        for(int i=0; i<k; ++i)
        {
            g << ans[i] << " ";

        }
        g << '\n';
        return;
    }
    else
    for( int i=1; i<=n; ++i)
    {
        if(!ap[i])
        {
          ans[k] = i;
          ap[i] = 1;
          back(k + 1);
          ap[i] = 0;
        }
    }
}
int main()
{
    f >> n;
    back(0);

    return 0;
}