Not quite right.

You are attempting to catenate the numbers as strings, so the "correct" way to do it is to explicitly cast the individual elements first:
code:
CStr($n)+CStr($o)+CStr($p)

Of course, that is a lot of unnecessary typing when you can use the auto-casting features of KiXtart:
code:
CStr($n)+$o+$p

The left-to-right processing of operators with equal precedence will ensure that this will work as well.

This may be a little heavy for Starters [Wink]