#include <fstream>
#include <vector>
using namespace std;
ifstream cin("permutari.in");
ofstream cout("permutari.out");
int n;
vector<int> arr;
vector<bool> used;

void generatePermutations(int pos) {
    if (pos == n) {
        for (int i = 0; i < n; i++) {
            cout << arr[i];
            if (i < n - 1) cout << " ";
        }
        cout << "\n";
        return;
    }
    
    for (int i = 1; i <= n; i++) {
        if (!used[i]) {
            arr[pos] = i;
            used[i] = true;
            generatePermutations(pos + 1);
            used[i] = false;
        }
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    
    cin >> n;
    
    arr.resize(n);
    used.resize(n + 1, false);
    
    generatePermutations(0);
    
    return 0;
}