You are building a rectangular solid out of 1 cm cubes. Each rectangular solid will have a length, width, and height. Determine if the cubes in that solid can be restacked in order to make a large cube (all three dimensions must be equal) using all of the 1 cm cubes from the original rectangular solid with no additional 1 cm cubes being used. The method makeCube will return the length of the resulting cube if one is possible. Return 0 if no cube can be made.