[C#] Methods/ Task - 09 Biggest in a portion

using System;
class MaximalElementInPortion
{
    static void DescendingSort(int[] arr)
    {
        Console.WriteLine("Descending sort: ");
        Array.Reverse(arr);
        foreach (int num in arr)
        {
            Console.Write(num + " ");
        }
        Console.WriteLine();
    }
    static void AscendingSort(int[] arr)
    {
        Array.Sort(arr);
        Console.WriteLine("the biggest number in chosen portion is {0}", arr[arr.Length - 1]);
        Console.WriteLine("Ascending sort: ");
        foreach (int num in arr)
        {
            Console.Write(num + " ");
        }
        Console.WriteLine();
        DescendingSort(arr);
    }
    static void AddInNewArr(int[]array, int number)
    {
        int[] newArr = new int[array.Length-number];
        for (int i = 0; i < newArr.Length; i++)
        {
            newArr[i] = array[i + number];
        }
        AscendingSort(newArr);
    }
    static void Main()
    {
        int[] array = {6, 44, 90, -123, -69, 900, 55, 12, 700, 0, -130, -9, 32, 250 };
        int n = int.Parse(Console.ReadLine());
        AddInNewArr(array,n);
    }
}