using System;

// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");


//LinkedList<int> list = new LinkedList<int>();

//list.Append(1);
//list.Append(2);
//list.Append(3);
//list.Append(4);
//list.Append(5);
//list.Append(6);

//list.Delete(5);
//list.Delete(2);
//list.Delete(0);










// DoublyLinkedList<int> list = new DoublyLinkedList<int>();

// list.Append(1);
// list.Append(2);
// list.Append(3);
// list.Append(4);
// list.Append(5);
// list.Append(6);
// list.Insert(6, 1);

// Console.Write($"{list[0]} ");
// Console.Write($"{list[1]} ");
// Console.Write($"{list[2]} ");
// Console.Write($"{list[3]} ");
// Console.Write($"{list[4]} ");
// Console.Write($"{list[5]} ");
// Console.Write($"{list[6]} \n");







//Stack<int> stack = Stack<int>.Create();

//stack.Push(1);
//stack.Push(2);
//stack.Push(3);
//stack.Push(4);
//stack.Push(5);
//stack.Push(6);

//Console.WriteLine(stack.Peek());

//stack.Pop();
//stack.Push(7);

//stack.Pop();
//stack.Pop();
//stack.Pop();
//stack.Pop();
//stack.Pop();
//stack.Pop();







//Queue<int> queue = Queue<int>.Create();

//queue.Push(1);
//queue.Push(2);
//queue.Push(3);
//queue.Push(4);
//queue.Push(5);
//queue.Push(6);

//Console.WriteLine(queue.Peek());

//queue.Pop();
//queue.Push(7);

//queue.Pop();
//queue.Pop();
//queue.Pop();
//queue.Pop();
//queue.Pop();
//queue.Pop();


Console.ReadLine();