#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int v[20], n;

void afisare(int p)
{
    for(int i = 1; i <= n; i++)
        fout << v[i] <<" ";
    fout <<'\n';
}
bool valid(int p)
{
    for(int i = 1; i < p ; i++)
        if(v[i] == v[p])
            return false;
    return true;
}
void back(int p)
{   int pval;
    for(pval = 1; pval <= n; pval++)
    {
        v[p] = pval;
        if(valid(p))
            if(p == n)
                afisare(p);
            else
                back(p+1);
    }
}

int main()
{
    fin >> n;
    back(1);
    return 0;
}