using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var result = Calc();

        Console.WriteLine($"{result.Description}: {result.Value}");

        //or

        var (value, description) = Calc();

        Console.WriteLine($"{description}: {value}");

    }

    public static (int Value, string Description) Calc()

    {

        return (1, "hello");

    }

}