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

namespace Composite
{
	abstract class Component
	{
		public abstract string Operation();

		public virtual void Add(Component component)
		{
			throw new NotImplementedException();
		}

		public virtual void Remove(Component component)
		{
			throw new NotImplementedException();
		}

		public virtual bool IsComposite()
		{
			return true;
		}
	}
}