That thing what you've said in the said line is what im confused about. i dont know how to do it.

sorry, it's the second line.

Sorry if my problem was not that clear enough. Well, what im tying to achieve here is to read and store those each line of numbers to array so i can use it to output into firsthalfyear.txt. Unfortunately, i don't how to that. It is inefficient to declare 12 integers just to each number on each line.