using System;

using System.Text;

​

​

for (int i = 2; i <= 4; i++)

{

    for (int j = i - 2; j < i * 2; j++)

    {

        string branch = new String('*', j);

        Console.WriteLine(branch.PadLeft(8 + 3) + "*" + branch);

    }

}

​

​

Console.WriteLine(Encoding.UTF8.GetString(Convert.FromBase64String("CiAgICBNZXJyeSBDaHJpc3RtYXMKICAgICAgICAgYW5kIGEKICAgICAgSGFwcHkgMjAyMiE=")));