using System;

public class Program

{

    class Chicken

  {

    private string name;

    private int age;

​

    public Chicken(string name, int age)

    {

      this.Name = name;

      this.Age = age;

    }

​

    public string Name

    {

      get

      {

        return this.name;

      }

      set

      {

        if (String.IsNullOrEmpty(value) || String.IsNullOrWhiteSpace(value))

        {

          throw new ArgumentException("Name cannot be empty");

        }

        else

        {

          this.name = value;

        }

      }

    }

​

    public int Age

    {

      get

      {

        return this.age;

      }

      set

      {

        if (value < 0 || value > 15)

        {

          throw new ArgumentException("Age should be between 0 and 15");

        }

        else

        {

          this.age = value;

        }

      }

    }

​

    private float CalculateProductPerDay()

    {

      return (float)age * 0.01f;

    }

​

    public new string ToString()

    {

      // return $"Chicken {this.name} (age {this.age}) can produce {this.CalculateProductPerDay()} eggs per day.";

        return String.Format("Chicken {0} (age {1}) can produce {2} eggs per day.", this.name, this.age, this.CalculateProductPerDay());

    }

  }

    public static void Main()

    {

        try

      {

        Console.WriteLine("Please enter the chicken's name:");

        string name = Console.ReadLine();

        Console.WriteLine("Please enter the chicken's age:");

        int age = int.Parse(Console.ReadLine());

​

        Chicken chick = new Chicken(name, age);

        Console.WriteLine(chick.ToString());

      }

      catch (ArgumentException argEx)

      {

        Console.WriteLine(argEx.Message);

      }

    }

}