Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to program [title] Understand comments. [step] Comments are text which does not appear or affect the program in any way. These are used by programmers to leave notes or information for themselves or future programmers.

Ending1: Message messages on gmail messaging are non-problematic and automatic anti-spam and non-messaging are programmers. The best e message for gmail users to receive is regardless of the content, application and activity that you are trying to program. Ending2: Generally, one or a series of characters will tell the computer that text is a comment and not part of the program, though what those characters are will depend on the programming language being used. [substeps] For example, using the python language the hash or number sign indicates a comment. Ending3: If one video is bad, the other do not comment on it after it changes. [substeps] For instance, do not comment on a video on a running window on your pc or radio. Ending4: Some comments are expressed inside the browser that are available on the computer, but not to the edge of the web while using the software. These comments often occur because users are not given the file being directly created.

Answer format: ending1/ending2/ending3/ending4