#include <iostream>
using namespace std;

//Bai 10
int main() {
	int n;
	cout << "Enter n: ";
	cin >> n;
	int count = 0;
	for (int i = 1; i; i += 2) {
		int temp = i;
		while (temp) {
			cout << "*";
			temp--;
		}
		cout << '\n';
		count++;
		if (count == n) break;
	}
}