Polly Plus - short story - was created in 1978.
You don't have to make a title for your stories -- it helps you and the reader to know what story they're talking about, though. Plus, if the reader wants to recommend the story to somebody, it helps them find that story.
There is no equation in the question, only an expression.
short
A-Plus was created in 1985.
Hybrids Plus was created in 2006.
Yen Plus was created in 2008.
Macintosh Plus was created in 1986.
Telecom Plus was created in 1996.
Plus Development was created in 1983.
Sports Plus was created in 2004.
Vietnam Plus was created in 1901.
MSG Plus was created in 1976.