using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("\nPlease write the units you have: g or oz: ");

        string units = Console.ReadLine();

        Console.WriteLine("\nPlease input the weight value :");

        if(units=="oz"){

            double oz = Convert.ToDouble(Console.ReadLine());

            double g = oz*28.34952;

            Console.WriteLine("The number of g is: " + g);

        }

        else if(units=="g"){

            double g = Convert.ToDouble(Console.ReadLine());

            double oz = g/28.34952;

            Console.WriteLine("The number of oz is: " + oz);

        }

​

    }

}