completing 4 task

Lesson_6/PersonClass.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PersonList
+{
+    class PersonClass
+    {
+        public string Name;
+        public string Surname;
+        public string Patronymic;
+
+        public int Age;
+
+        public long PhoneNumber;
+
+        public int Salary;
+
+        public string Post;
+
+        public string Email;
+
+        public PersonClass(string surname, string name, string patron, 
+            int age, long phone, int salary, string post, string email) { Surname = surname; Name = name;
+            Patronymic = patron; Age = age; PhoneNumber = phone; Salary = salary; Post = post; Email = email;
+        }
+        public void GetInfo()
+        {
+            Console.WriteLine($"ФИО сотрудника:\n {Surname}  {Name}  {Patronymic}\n" +
+                $"Возраст:\n {Age}\n Телефонный номер:\n {PhoneNumber}\n ЗП:\n {Salary}\n" +
+                $" Должность:\n {Post}\n Адрес электронной почты:\n {Email}");
+        }
+    }
+}

Lesson_6/Program.cs

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+using System;
+
+namespace PersonList
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            PersonClass[] people = new PersonClass[5];
+            people[0] = new PersonClass("Караульных", "Илья", "Владимирович", 25, 89206149880, 40000, "Прогер", "karaulnihiv@gmail.com");
+            people[1] = new PersonClass("Караульных", "Илья", "Владимирович", 45, 89206149880, 40000, "Прогер", "karaulnihiv@gmail.com");
+            people[2] = new PersonClass("Караульных", "Илья", "Владимирович", 15, 89206149880, 40000, "Прогер", "karaulnihiv@gmail.com");
+            people[3] = new PersonClass("Караульных", "Илья", "Владимирович", 55, 89206149880, 40000, "Прогер", "karaulnihiv@gmail.com");
+            people[4] = new PersonClass("Караульных", "Илья", "Владимирович", 5, 89206149880, 40000, "Прогер", "karaulnihiv@gmail.com");
+
+            for (int i = 0; i < people.Length; i++)
+            {
+                if (people[i].Age>=40)
+                {
+                    people[i].GetInfo();
+                    Console.WriteLine();
+                }
+            }
+        }
+    }
+}