#include <iostream>

using namespace std;

int rows;

// This assignment is worth 3 points

int main()
{
	cout << "Enter number of rows: ";
	cin >> rows;
	cin.ignore();

	for(int i = 0; i < rows; i++)
	{
		for(int spaces = 0; spaces < rows - i; spaces++)
			cout << ' ';
		for(int ast = 1; ast < 2*(i+1); ast++)
			cout << '*';
		cout << endl;
	}

	return 0;
}