#include <bits/stdc++.h>

using namespace std;

ifstream fin("permutari.in");
ofstream fout("permutari.out");

int n, st[20];
bool ap[20];

void Back(int top)
{
    if(top == n + 1)
    {
        for(int i = 1; i <= n; i++)
            fout << st[i] << " ";
        fout << '\n';
    }
    else for(int i = 1; i <= n; i++)
        if(ap[i] == 0)
        {
            st[top] = i;
            ap[i] = 1;
            Back(top + 1);
            ap[i] = 0;
        }
}

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