In this question, you will be solving a box-coloring problem. In this domain, there are 6 boxes stacking on each others. Each of the boxes must be colored in one color of three possible colors (Gold, Silver, and Bronze). The boxes must be colored in such a way that
no adjacent boxes are the same color. Two boxes are considered to be adjacent if they touch along an edge. (Two boxes that touch only at a corner are not adjacent.) Here is the picture that you'll be using for all of the questions: