using System;

public class Program

{

    public static void Main()

    {

        int satir=4;

for (int m = 0; m <= 4; m++){

{

​

for (int n = 0; n <= satir; n++)

Console.Write(" ");

​

for (int z = 0; z <= 15; z++)

{ if(z==0 || z==15 || m<=0 || m==4)

    Console.Write("*");

 else

     Console.Write(" ");

} if(satir==0)break;else    

satir--;

Console.WriteLine();

​

}

​

​

    }} 

} 

​