using System;

​

class MainClass {

​

  public static  void Print20Stars ( int pos1, int pos2)       

  {

    for (int counter = 1 ; counter <= 20 ; counter++)

      Console.Write("*");

       Console.WriteLine( ) ;

    PrintRectangle (pos1, pos2);

  }

​

  public static void PrintStars (int pos1 )

  {

    for (int counter = 1 ; counter <= pos1 ; counter++)

      Console.Write("*");

    Console.WriteLine( ) ;

  }

   public static void PrintRectangle (int width, int height )

  {

    for (int counter = 1 ; counter <= height ; counter++)

      PrintStars(width);

  }

​

  public static int GetPositiveNumber ( )

  {

    int pos = -1; 

    while (pos<=0)

    {

      Console.WriteLine ("please enter positive number");

      pos = int.Parse(Console.ReadLine());

    }

    return pos;

  }

​

  public static void Main (string[] args) {

    int pos1 = GetPositiveNumber();

    int pos2 = GetPositiveNumber();

    Print20Stars(pos1, pos2);

  }

}