import acm.program.*;

public class Askisi2 extends Program {

public void run() {
	  int n = readInt("Enter tne size of triangle: ");
	  println("The triangle is: ");
	  subthetiko(n);
	}


	String subthetiko(int n)
	{
		if (n==0)
		{
			return "\n" ;
		}
		else
		{
			String z = subthetiko(n - 1) + "*";
			println( z + "\n" );
			return z;
		}

	}

}