Program.cs

using System;
using System.Collections.Generic;

namespace MyApp // Note: actual namespace depends on the project name.
{
    internal class Program
    {
        static void Main(string[] args)
        {
          List<string> names = new List<string>();
          
          names.Add("Bob");
          names.Add("Anne");
          names.Add("Daphne");  
          names.Add("Steve");  
          names.Add("Seth");  

          names.ForEach(name => Console.Write(name + " ")); 

          List<string> stuff = new List<string>{"a", "b", "c", "d"};

          stuff.ForEach(stuff => Console.Write(stuff + " "));

          int x = 5;
          int y = 7;
          int result = Adder(x,y);//12

          int result2=Adder(10,46);//56

          Console.WriteLine($"{x} + {y} = {result}");

          


        }

        static int Adder(int a, int b)
        {
            return a + b;
        }
    }
}