using System;

public class Program

{

    public static void Main()

    {

        string[] studentarray={"George","Josh","Mitchell","Manuel","Danny","Jack","Sam"};

        Console.WriteLine("Enter the student to be found");

        string value = Console.ReadLine();

        {

            int low = 0, high = studentarray.Length-1, middle=0;

            while(low<=high)

            {

                middle = low+(high-low)/2;

                if (value==studentarray[middle])

                {

                    Console.WriteLine("The element has been found at the index: " + middle);

                    break;

                }

                else if (String.Compare(value, studentarray[middle]) < 0)  

                    high = middle-1;

                else

                    low = middle+1;

    }

}

}

}