/**
 * COSC 1010 Triangle Demo
 * Demonstrates the use of nested loops to produce ASCII art triangles.
 * @author Dennis Brylow
 * @version 1.0,    2010 Sep 20
 */

import java.util.Scanner;

class Triangle
{
	public static void main(String args[])
	{
		System.out.println("Size?");
		Scanner keyboard = new Scanner(System.in);

		int rows = keyboard.nextInt();

		// Outer loop runs once for each row.
		for (int i = 0; i < rows; i++)
		{
			// Inner loop runs once for each column.
			for (int j = 0; j < i + 1; j++)
			{
				System.out.print(" *");
			}
			System.out.println();
		}
	}
}