using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Notebook: ");

         var i1 = Console.ReadLine();

         var n1 = int.Parse(i1);

         var t1 = n1 * 12.50;

        Console.WriteLine("= " + t1);

        Console.Write("Pencil: ");

         var i2 = Console.ReadLine();

         var n2 = int.Parse(i2);

         var t2 = n2 * 3.25;

        Console.WriteLine("= " + t2);

        Console.Write("Pen: ");

         var i3 = Console.ReadLine();

         var n3 = int.Parse(i3);

         var t3 = n3 * 5;

        Console.WriteLine("= " + t3);

        Console.Write("Marker: ");

         var i4 = Console.ReadLine();

         var n4 = int.Parse(i4);

         var t4 = n4 * 9.50;

        Console.WriteLine("= " + t4);

        Console.Write("Rule: ");

         var i5 = Console.ReadLine();

         var n5 = int.Parse(i5);

         var t5 = n5 * 15;

        Console.WriteLine("= " + t5);

        Console.Write("BackPack: ");

         var i6 = Console.ReadLine();

         var n6 = int.Parse(i6);

         var t6 = n6 * 100;

        Console.WriteLine("= " + t6);

        var tt = t1+t2+t3+t4+t5+t6;

        Console.Write("Total: " + tt);

        Console.WriteLine("\nBy Erick de la Rosa");

    }

}