using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Area or length?");

        string calcMode = Console.ReadLine();

        if (calcMode == "area")

        {

            AreaMode();

        }

        if (calcMode == ("length"))

        {

            LengthMode();

        }

    }

    public static float AreaMode()

    {

        Console.WriteLine("Small area?");

        string smallArea = Console.ReadLine();

        int fSmallArea = Convert.ToInt32(smallArea);

        Console.WriteLine("Medium area?");

        string medArea = Console.ReadLine();

        int fMedArea = Convert.ToInt32(medArea);

        Console.WriteLine("Big area?");

        string bigArea = Console.ReadLine();

        int fBigArea = Convert.ToInt32(bigArea);

        return 0;

    }

    public static float LengthMode()

    {

        return 0;

    }

}