using System;

public class Program

{

    public static void Main()

    {

        string planet=Console.ReadLine();

        switch(planet)

        {

                case "Mercury":Console.WriteLine("plosht=4880 km,i e solidna planeta");

                break;

                    case "venus":Console.WriteLine("plosht=12 103,7 km ,i e solidna planeta");

                break;

                        case "earth":Console.WriteLine("plosht= 6378.137 km ,i e solidna planeta");

                break;

                            case "Mars":Console.WriteLine("plosht=868868 km,i e solidna planeta");

                break;

                                case "jupiter":Console.WriteLine("plosht=094848855 km,i e gazoobrazna planeta");

                break;

                                    case "saturn":Console.WriteLine("plosht=4u58585 km,i e gazoobrazna planeta");

                break;

                                        case "uranus":Console.WriteLine("plosht=85854848 km,i e gazoobrzna planeta");

                break;

                            case "neptune":Console.WriteLine("plosht=8585477848 km,i e gazoobrazna planeta");

                break;

        }

    }

}