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:
Input size of 1 file:
Input size of 2 file:
Input size of 3 file:
Total disk space is 21 bytes.

Here is my code:

namespace ForLoops
   class DiskSpace
       static void Main(string[] args)
           int total = int.Parse(Console.ReadLine());
           int number = int.Parse(Console.ReadLine());

Can anyone please help me to solve it?