#include <fstream>
using namespace std;
short n,x[9],i;
ofstream out("permutari.out");
void citire()
{
    ifstream in("permutari.in");
    in>>n;
    in.close();
}
void afis()
{
    for (i=1;i<=n;++i)
    out<<x[i]<<" ";
    out<<'\n';
}
bool valid(short k)
{
    for (i=k-1;i>=1;--i)
    if (x[i]==x[k])
    return 0;
    return 1;
}
void back()
{
    short k=1;
    while (k>0)
    {
        if (k==n+1)
        {
            afis();
            --k;
        }
        else
        if (x[k]<n)
        {
            ++x[k];
            if (valid(k))
            ++k;
        }
        else
        {
            x[k]=0;
            --k;
        }
    }
}
int main()
{
    citire();
    back();
    out.close();
    return 0;
}