#include <iostream>
#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");

int N, fr[26], v[18];
void gen(int lg, int v[18]) {
    if (lg == N + 1) {
        for (int i = 1; i <= N; ++i) {
            g << v[i] << " ";
        }
        g << "\n";
        return;
    }
    for (int i = 1; i <= N; ++i) {
        if (fr[i] == 0) {
            v[lg] = i;
            fr[i] = 1;
            gen(lg + 1, v);
            fr[i] = 0;
        }
    }
}

int main() {
    f >> N;
    gen(1, v);
    f.close();
    g.close();
    return 0;
}