using System;

public class Program

{

    public static void Main()

    {

        sortingdata();

    }

    static void sortingdata()

    {

        Console.WriteLine("Linear search");

        int[] allmarks = new int[25]{12,23,34,45,56,09,87,23,45,65,23,45,56,32,54,32,76,87,54,98,12,34,32,87,37};

        bool found = false;

        Console.WriteLine("Please enter mark between 1 to 100 ");

        Console.WriteLine();

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

        for ( int i = 0; i < allmarks.Length; i ++)

        {

            if ( allmarks[i] == vMark)

            {

                Console.WriteLine("Mark found!!");

                found = true;

                break;

            }

        }

            if ( found == false)

            {

                Console.WriteLine("Mark is not found");

            }

    }

}