using System;

public class Program

{

    public static void Main()

    {

        int[] numbers = {41, 77, 20, 94, 95, 79, 14, 38, 55, 72, 72, 56};

        Console.WriteLine("Which value are you looking for");

        int value = int.Parse(Console.ReadLine());

        if (LinearSearchWhile(numbers, value) == -1)

        {

            Console.WriteLine("Item not found");

        }

        else

        {

            int position = LinearSearchWhile(numbers, value);

            Console.WriteLine("Item found in  position {0}", position);

        }

    }

    public static int LinearSearch(int[] numbers, int value)

    {

        int length = numbers.Length;

        for (int i =0; i < length; i++)

        {

            if (numbers[i] == value)

            {

                return i + 1;

            }   

        }

        return -1;

    }

    public static int LinearSearchWhile(int [] numbers, int value)

    {

        int index = 0;

        do

        {

            if (numbers[index] == value)

            {

                return index + 1;

            }

            index += 1;

        } while (numbers[index] != value);

        return -1;

    }

}