Addition opearation not working in selenium IDE

[alainam...@gmail.com]

I am running a command storeEval | javascript{storedVars['a'] + storedVars['b']} | Total |  Where a=5 and b=3 but instead of returning 8 it is returning 53.  Please tell what mistake i am doing and do we need to do something specific to execute javascript in selenium IDE

[Manoj Kumar]

It is considering as the String and appending them try to use without single quotes that might work. 

Thanks and regards

Manoj Kumar Gudala

[alainam...@gmail.com]

Not working without quotes, It says reference 'a' is not defined.