12

using System;
using System.Collections.Generic;

namespace Drafty
{
    class Program
    {
        class Continent
        {
            public string Name { get; set; }

            public double square { get; set; }

            public Continent(string name, double square = 1000)
            {
                this.Name = name;
                this.square = square;
            }

            public void GetInfo()
            {
                Console.WriteLine($"Continent name: {this.Name}, square: {this.square}");
            }
        }

        class Ocean
        {
            public string Name { get; set; }
        }

        class Island
        {
            public string Name { get; set; }

            public int Population { get; set; }
        }

        class Planet
        {
            List<Continent> conCount;

            public string Name { get; private set; }

            public Planet(string name, int continentsCount)
            {
                this.Name = name;
                this.conCount = new List<Continent>();

                for (int i=0; i<continentsCount; i++)
                {
                    AddContinent("какой-то континент");
                }
            }

            public void GetInfo()
            {
                Console.WriteLine($"Планета: {this.Name}, количество материков: {this.conCount.Count}");
            }

            public void AddContinent(string name, double square = 1000)
            {
                this.conCount.Add(new Continent(name, square));
            }

            public void AddContinent(params string[] name)
            {
                for (int i=0; i<name.Length; i++)
                {
                    this.conCount.Add(new Continent(name[i]));
                }
            }

            public void GetContinentName(int index)
            {
                if (index >= this.conCount.Count || index < 0)
                {
                    Console.WriteLine("Такого континента нет");
                    return;
                }

                Console.WriteLine($"Континент: {this.conCount[index].Name}");
            }
        }


        static void Main(string[] args)
        {
            Planet earth = new Planet("earth", 0);
            earth.AddContinent("Asia", "Africa", "North America", "South America", "Antarctida", "Europe", "Australia");

            earth.GetContinentName(2);
            earth.GetInfo();
        }
    }
}