C++

Hey, I am a complete noob to c++, and I need to know how to add strings.

Eg, I have:
a="one"
b="two"
c="three"

and I would like "d" to equal "onetwothree".

Thank you for any help

>>9
It should be just d+strlen(a), and no, it's not the fault of language, it's just that you are dumb.