#include <iostream>
#include <fstream>
using namespace std;

#define MAXN 10

ifstream f("permutari.in");
ofstream g("permutari.out");

int a[MAXN], n;

void print()
{
    for (int i = 1; i <= n; i++) {
        g << a[i] << ' ';
    }
    g << endl;
}

bool check(int el, int n) {
    for (int i = 1; i <= n; i++) {
        if (a[i] == el) {
            return false;
        }
    }
    return true;
}

void back(int i = 1)
{
    for (int j = 1; j <= n; j++) {
        a[i] = j;
        if (check(j, i - 1) == false) {
            continue;
        }

        if (i < n) {
            back(i + 1);
        } else {
            print();
        }
    }
}

int main()
{
    f >> n;
    back();

    return 0;
}