using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

 public class Program {

  public static void Main(string[] args) {

  List<Employee> employees = new List<Employee>();

    Employee emp1 = new Employee { Name = "Deepak", Skills = new List<string> { "C", "C++", "Java" } };

    Employee emp2 = new Employee { Name = "Karan", Skills = new List<string> { "SQL Server", "C#", "ASP.NET" } };

    Employee emp3 = new Employee { Name = "Lalit", Skills = new List<string> { "C#", "ASP.NET MVC", "Windows Azure", "SQL Server" } };

    employees.Add(emp1);

    employees.Add(emp2);

    employees.Add(emp3);

        //Select Query

       IEnumerable<List<String>> res1 = employees.Select(e=> e.Skills);

        Console.WriteLine(" Select Query");

       foreach (List<String> skillList in res1){

      foreach (string skill in skillList){

       Console.WriteLine(skill);

           }

       }

        //SelectMany() Query

     IEnumerable<string> res2 = employees.SelectMany(emp => emp.Skills);

      Console.WriteLine("SelectMany Query");

        foreach (string skill in res2){

        Console.WriteLine(skill);

        }

       }

     class Employee

      {

    public string Name { get; set; }

    public List<string> Skills { get; set; }

}

 }