Please help me with the task: Diskspace calculator.

Hello, I’m working on this task:

Your next task is to calculate the total amount of space that files occupy on a hard drive.
First, read an integer from the console that represents the total number of files. Then, read a series of numbers that represent the size of each file. Write a program that asks the user to input size of each of these files using the phrase: “Input size of {number} file:”. number represents the order of the files, starting with 1 and incrementing for each file. Finally, find the sum of all of the file sizes and output this result in the following format: “Total disk space is {sum} bytes.” For example:
>3
Input size of 1 file:
>2
Input size of 2 file:
>7
Input size of 3 file:
>12
Total disk space is 21 bytes.

Here is my code:


namespace ForLoops
{
   class DiskSpace
   {
       static void Main(string[] args)
       {
           int totalNumberOfFiles = int.Parse(Console.ReadLine());
           int number = int.Parse(Console.ReadLine());
           int sum = 0;
           for (int i = 0; i < number; i++)
           {
               Console.WriteLine($"Input size of {number} file: ");
               int size = int.Parse(Console.ReadLine());


           }   
           
           


       }
   }
}


Can anyone please help me to solve it?