#include <bits/stdc++.h>

using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n, st[10];
bool viz[10];
void Backtracking(int top)
{
    if (top == n + 1)
    {
        for(int i = 1; i < top; ++i)
            fout << st[i] << " ";
        fout << "\n";
        return;
    }
    for(int i = 1; i <= n; ++i)
        if(!viz[i])
        {
            viz[i] = true;
            st[top] = i;
            Backtracking(top + 1);
            viz[i] = false;
        }
}
int main()
{
    fin >> n;
    Backtracking(1);
    return 0;
}