#include <fstream>
using namespace std;

int n, st[9];
ofstream fout("permutari.out");

bool valid(int p)
{
    for (int i = 1; i < p; ++i)
        if (st[i] == st[p])
            return false;

    return true;
}

void backtrack(int p)
{
    for (int i = 1; i <= n; ++i)
    {
        st[p] = i;
        if (valid(p))
        {
            if (p == n)
            {
                for (int j = 1; j <= n; ++j)
                    fout << st[j] << ' ';
                fout << '\n';
            }
            else
                backtrack(p + 1);
        }
    }
}

int main()
{
    ifstream("permutari.in") >> n;
    backtrack(1);
}