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

template <class T>
void dfs(vector<T>& _path, int n) {
	if(_path.size() == n){
		for(auto x : _path) cout << x << " ";
		cout << endl;
		return;
	}
	for(int i = 0; i < n; i++){
			_path.push_back(i + 1);
			dfs(_path, n);
			_path.pop_back();
	}
}

int main(){
	int n;
	cin >> n;
	vector<int> path;
	dfs(path, n); 
	return 0;
}