using System;

class A {
    public A() { Console.WriteLine("A"); }
}

class B {
    public B() { Console.WriteLine("B"); }
}

public class Test
{
    static readonly A a;
    static readonly B b;

    public static void Main()
    {
    }

    static Test()
    {
        b = new B();
        Console.WriteLine("-");
        a = new A();
    }

}

public sealed class Singleton
{
    private static readonly Singleton instance = new Singleton();

    // Explicit static constructor to tell C# compiler
    // not to mark type as beforefieldinit
    static Singleton()
    { }

    private Singleton()
    { }

    public static Singleton Instance { get { return instance; } }
}

class Foo
{
  private string s1 = "s1";
  private string s2;

  private static string s3 = "s3";
  private static string s4;

  public Foo()
  {
    s2 = "s2";
  }

  static Foo()
  {
    s4 = "s4";
  }
}

// ctor
// Код инициализаторов полей
// Вызов конструктора базового класса
// Код текущего конструктора

internal class SomeType {
private static Int32 s_x = 5;
}

internal class SomeType {
private static Int32 s_x;
static SomeType() { s_x = 5; }
}