Kalincho

class StartUp
    {
        //private static readonly IFormatProvider result;

        static void Main(string[] args)
        {
            List<Employee> employees = new List<Employee>();

            int n = Int32.Parse(Console.ReadLine());

            for (int i = 0; i < n; i++)
            {
                string[] input = Console.ReadLine().Split();

                string name = input[0];
                decimal salary = decimal.Parse(input[1]);
                string position = input[2];
                string department = input[3];

                Employee employee = new Employee(name, salary, position, department);

                if (input.Length == 5)
                {
                    if (int.TryParse(input[4], out int result))
                    {

                        employee.Age = result;
                    }
                    else
                    {

                        employee.Email = input[4];
                    }
                }
                else if (input.Length == 6)
                {
                    int age = int.Parse(input[5]);
                    employee.Email = input[4];
                    employee.Age = age;
                }

                employees.Add(employee);

                var topDepartment = employees.GroupBy(x => x.Department)
                    .ToDictionary(x => x.Key, y => y.Select(s => s))
                    .OrderByDescending(x => x.Value.Average(s => s.Salary))
                    .FirstOrDefault();

                Console.WriteLine($" Highest Average Salary: {topDepartment.Key}");

                foreach(var employee in topDepartment.Value.OrderByDescending(x => x.Salary))
                {
                    Console.WriteLine($"{employee.Name} {employee.Salary} {employee.Position} {employee.Email} {employee.Age} ");

                }
            }
        }
    }

class Employee
    {
        private string name;
        private string department;
        private string position;
        private int age;
        private decimal salary;
        private string email;

        public Employee(string name, decimal salary, string position, string department)
        {

            this.Name = name;
            this.Position = position;
            this.Department = department;
            this.Salary = salary;
            this.Age = -1;
            this.Email = "n/a";


        }

        public string Name
        {
            get { return this.name; }
            set { this.name = value; }
        }

        public string Position
        {
            get { return this.position; }
            set { this.position = value; }
        }

        public string Department
        {
            get { return this.department;}
            set { this.department = value; }

        }

        public decimal Salary
        {
            get { return this.salary; }
            set { this.salary = value; }

        }

        public int Age
        {
            get { return this.age; }
            set { this.age = value; }

        }

        public string Email
        {
            get { return this.email; }
            set { this.email = value; }

        }

    }
}