import java.util.Scanner;

public class TriangleVariant
{
    public static void main(String[] args)
    {

        String lnBreak = System.getProperty("line.separator"); // cross platform next line

        System.out.println("How big should the triangle be?");

        Scanner input = new Scanner(System.in); // length of the max value
        int size = input.nextInt();

        for(int i = 0; i != (size + 1); i++)
        {
            for(int x = 0; x != i; x++)
            {
                System.out.print("*");
            }
            System.out.print(lnBreak);
        }
        for(int i = size; i != 0; i--)
        {
            for(int x = (i - 1); x != 0; x--)
            {
                System.out.print("*");
            }
            System.out.print(lnBreak);
        }

    }
}