int x;; string y; y = "*"; for (x = 0; x <= 3; x++) { if (x == 0) Console.WriteLine(y); if (x==1) Console.WriteLine(y + y); if (x==2) Console.WriteLine(y + y + y); if(x==3) Console.WriteLine(y + y + y + y); } for (int minus = 3; minus >= 0; minus--) { if (minus == 3) Console.WriteLine(y + y + y); if (minus == 2) Console.WriteLine(y + y); if (minus == 1) Console.WriteLine(y); }