The file can be written decimal numbers and anything you like.

Question

A number is a sequence of digits that go in succession (that is, the number is always nonnegative). Calculate the sum of all the numbers written in the file.

Answer 1

I'm just learning and do not yet know how to fully use my knowledge in this matter. If I could decide this on my own, I would not write here. And if you do not want to help with the solution of the problem then leave your advice to yourself.

Answer 2

I do not want to learn this is just a school assignment. I'm not going to do this