using System.Linq;

​

class Program

{

    static void Main()

    {       

        var names = new [] {"Husain", "Abdulla", "Maki", "Yusuf", "Abdali"};

        foreach (var name in from name in names where name.StartsWith('A') orderby name select name) System.Console.WriteLine(name);        

        foreach (var name in names.Where(name => name.StartsWith('A')).OrderBy(name => name)) System.Console.WriteLine(name);       

    }

}