using System;

namespace ConsoleApp5
{
    class Base
    {
        private int _baseField = PrintAndReturnLength("Base class field init");
        protected Base()
        {
            Console.WriteLine("Base ctor");
        }

        protected static int PrintAndReturnLength(string message)
        {
            Console.WriteLine(message);
            return message.Length;
        }
    }

    internal class Derived : Base
    {
        private int _derivedField = PrintAndReturnLength("Derived class field init");

        public Derived()
        {
            Console.WriteLine("Derived ctor");
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            var d = new Derived();
        }
    }
}