Person
          using System;

          class APerson {
              virtual public string WashDishes(){
                  return "wet and dry";
              }
          }
          
          class AMan:APerson{
              override public string WashDishes(){
                  return "dry";}
          }
          
          class AWoman:APerson{
              override public string WashDishes(){
                  return "wet";}
          }
          
          public class Program
          {
              static string result;
              static void ViewModel(){
                  Model();
                  View();
              }
              static void View(){
                   Console.WriteLine (result);
              }
              static void Model(){
                  APerson Ivan = new AMan();
                  APerson Ira = new AWoman();
                  APerson[] family = new APerson[2];
                  family[0] = Ira;
                  family[1] = Ivan;
                  for (int i=0; i < 2; i++){
                      result+= family[i].WashDishes()+ " \n \r";
                  }
                 
              }
              public static void Main()
              {
                  ViewModel();
              }
             }

            

Pet
          using System;

          class APet {
              public virtual string Say(){
                  return "I am a pet, not an animal";
              }
          }
          
          class ADog:APet{
              internal override string Say(){
                  return "Woof";}
          }
          class ACat:APet{
              internal override string Say(){
                  return "Miow";}
          }
          class ARooster:APet{
              internal override string Say(){
                  return "Cock-a-doodle-doo";}
          }
          class ADonkey:APet{
              internal override string Say(){
                  return "Hee-haw";}
          }
          
          public class BremerStadtMus
          {
              static string[] aresult = {"","","",""};
              
              static void Main(){
                ModelView();
              }
          
              static void View(){
                foreach(string s in aresult)  
                      Console.WriteLine(s);
              }
          
              static void ModelView(){
                  Console.WriteLine("ModelView");
                  Model();
                  View();
              }
           
              static string Model(){
                  APet[]ap = new APet[4];
                  ap[0] = new ADog();
                  ap[1] = new ACat();
                  ap[2] = new ARooster();
                  ap[3] = new ADonkey();
                  string result="";
                  int j =0;
                  for (int i=0;i)}}