using System;

class ElementCheck
{
    static void Main()
    {
        Console.Write("How long to be the array:");
        int n = int.Parse(Console.ReadLine());
        int[] array = new int[n];

        InputArray(n, array);

        Console.Write("Which index you want to check - from 0 to N: ");
        int index = int.Parse(Console.ReadLine());

        CheckByIndex(n, array, index);

    }

    private static void InputArray(int n, int[] array)
    {
        Console.WriteLine("Enter the elements of the array:");
        for (int i = 0; i < n; i++)
        {
            array[i] = int.Parse(Console.ReadLine());
        }
    }

    private static void CheckByIndex(int n, int[] array, int index)
    {
        if (index == 0 || index == n)
        {
            Console.WriteLine("Number {0} on index {1} has only one neighbor!", array[index], index);
        }
        else if (array[index] > array[index - 1] && array[index] > array[index + 1])
        {
            Console.WriteLine("Number {0} on index {1} is bigger than its two neighbors", array[index], index);
        }
        else if (array[index] < array[index - 1] || array[index] < array[index + 1])
        {
            Console.WriteLine("Number {0} on index {1} is smaller than at least one of its two neighbors", array[index], index);
        }
        else
        {
            Console.WriteLine("Number {0} on index {1} is equal to its two neighbors", array[index], index);
        }
    }
}