[OOP] - Extension Methods and LINQ - Задача 3

using System;
using System.Collections.Generic;
using System.Linq;

class SortStudentsByName
{
    static void Main()
    {
        var students = new[]
        {
            new {FirstName = "Ivan", LastName = "Ivanov"},
            new {FirstName = "Georgi",  LastName = "Simeonov"},
            new {FirstName = "Ivan",  LastName = "Todorov"},
            new {FirstName = "Petyr",  LastName = "Chipev"},
            new {FirstName = "Anton",  LastName = "Donchev"},
            new {FirstName = "Filip",  LastName = "Andreev"},
            new {FirstName = "Svetslav",  LastName = "Bozov"},
        };
        var sorted =
            from st in students
            where st.FirstName.CompareTo(st.LastName) == -1
            select (st.FirstName + " " + st.LastName);

        foreach (var item in sorted)
        {
            Console.WriteLine(item);
        }
    }
}