/**
 *  This program draws a triangle of *s to standard output
 * 
 * @author  Stuart Hansen 
 * @version October 23, 2002
 */
import java.util.*;
    
public class Triangles
{
    // The main gets the number of rows and then draws the triangle
    public static void main (String [] args)
    {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter the number of rows: ");
        int rows = input.nextInt();
        
        // This method draws the triangle
        for (int i=1; i<=rows; i++)
        {
            for (int j=1; j<=i; j++)
            {
                System.out.print("*");
            }
            System.out.println();       
        }
    }
}