A blank line is one that contains only spaces in Area A and Area B. A comment line is one that contains an asterisk, dollar sign, or slash character in the indicator area. Conditional debugging lines are also considered comment lines unless the program is compiled with the conditional debugging option. Blank lines and comment lines may appear anywhere in the source program and have no effect. They will appear in the source listing. If a comment line contains a slash in the indicator area, the source listing will contain a page eject prior to that line.