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

namespace kolejkaStos
{
    class Program
    {
        static void Main(string[] args)
        {

        }
    }

    class Kolejka : ASiD
    {
        int[] values;
        int valuesLength;
        public Kolejka(int n)
        {
            valuesLength = n;
            generateVals();
        }

        public void generateVals()
        {
            Random rand = new Random();
            for (int i = 0; i < valuesLength; i++)
            {
                values[i] = rand.Next(-30, 30);
            }
        }

        public void Push(int x)
        {
            
        }

        public int Pop()
        {
            return values[valuesLength - 1];
        }

        public void Show()
        {
            Console.WriteLine("Values in queue: ");
            foreach (int value in values)
            {
                Console.Write(value + ' ');
            }
        }

        public int Length()
        {
            return valuesLength;
        }
    }

    class Stos
    {

    }

    interface ASiD
    {
        void Push(int x);
        int Pop();
        int Length();
        void Show();
    }
}