using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {   

        List<int> num = new List<int>() { 1, 1, 2, 3, 5, 8, 13, 21, 34, 55};

        var len = num.Count;

        var mid = len / 2;

        bool even = len % 2 == 0;

        var oddAdd = even ? 0 : 1;

        var min = num[0];

        var max = num[len - 1];

        var median = Median(num);

        var lowRange = num.GetRange(0, mid + oddAdd);

        var lowQuart = Median(lowRange);

        var highRange = num.GetRange(mid, mid + oddAdd);

        var highQuart = Median(highRange);

        printa(num, "num");

        Console.WriteLine();

        Console.WriteLine("min = " + min);

        Console.WriteLine();

        printa(lowRange, "lowRange");

        Console.WriteLine("lowQuart = " + lowQuart);

        Console.WriteLine();

        Console.WriteLine("median = " + median);

        Console.WriteLine();

        printa(highRange, "highRange");

        Console.WriteLine("highQuart = " + highQuart);

        Console.WriteLine();

        Console.WriteLine("max = " + max);

    }

    public static double Median(List<int> num)

    {

        var len = num.Count;

        var mid = len / 2;

        bool even = len % 2 == 0;

        return even ? (num[mid - 1] + num[mid]) / 2.0 : num[mid];

    }

    static void printa(List<int> num, string header = null)

    {

        if (header != null)

        {

            Console.Write(header + " = ");

        }

        foreach (var i in num)

        {

            Console.Write(i + " ");

        }

        Console.WriteLine("| len = " + num.Count);

    }

}