using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _03.FindStudentsLINQ
{
    class Program
    {
        static void Main()
        {
            Student[] students =
            {
                new Student
                {
                    FirstName = "Ivan",
                    LastName = "Tomov"
                },

                new Student
                {
                    FirstName = "Todor",
                    LastName = "Marinov"
                },

                new Student
                {
                    FirstName = "Ivaylo",
                    LastName = "Kostov"
                },

                new Student
                {
                    FirstName = "Nikolay",
                    LastName = "Angelov"
                },
                 new Student
                {
                    FirstName = "Alexander",
                    LastName = "Borisov"
                },
            };


            var firstNameBeforLast = students
                .Where(st => st.FirstName[0] < st.LastName[0])
                .Select(st => new
                {
                   FirstName = st.FirstName,
                   LastName = st.LastName

                });

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