fast way to get integers 0, 1, and 2 when given a random one from the set

So basically

int num = rand(2); //random number from 0-2
int otherNum, otherOtherNum;
otherNum = implement this
otherOtherNum = implement this

For example, if num is 2, otherNum and otherOtherNum must be set to 0 and 1 (or 1 and 0).

How would you implement this? Assume you can't use branching or look up tables.

I think a lookup might be the fastest but not sure, I dont like that solution though.