In class, we discussed how to swap two numbers. Assume you have three numbers stored in variables a, b, and c. Discuss how you could create a program to simply shift the values of a into b, and b into c, and c back into a. You do not need to write a program for this, but you need to describe how this could be done using your common sense. Be careful, a, b, and c each can only hold one value at a time! 5