using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DefaultAdapter
{
    interface IFuckable
    {
        void functionOne();
        void functionTwo();
    }

    abstract class DefaultAdapter : IFuckable
    {
        public virtual void functionOne(){}
        public virtual void functionTwo() { }

    }


    class Client : DefaultAdapter
    {
        //only functionOne, no functionTwo
        public override void functionOne()
        {
            throw new NotImplementedException();
        }
  
    }
}