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

int main() {
	vector<int> data{1, 2, 3, 4, 5, 6, 7};
	for (auto elem : data) {
		data.push_back(elem * 2);
		data.push_back(elem * 3);
	}
	
	for (int x : data) { cout << x << " "; }
	cout << "\n";
}