How to construct a repeating equation?

Programmer Question

Suppose two rational integers x and N.

I'm trying to determine how to construct an algorithm that would return an integer of the value x repeated N times.

So if x was 9 and N was 4, the equation would return 9999.

And if x was 9 and N was 5, the equation would return 99999. (ad nauseum)

I hope this isn't completely absurd or out of place on SO. :)

Find the answer here