Thirteen boxes are arranged in two stacks (Stack 1 to the west of Stack 2), each with seven shelves, one box per shelf, and one shelf vacant in either...
Question
Thirteen boxes are arranged in two stacks (Stack 1 to the west of Stack 2), each with seven shelves, one box per shelf, and one shelf vacant in either stack. Various conditions about the relative positions of boxes labeled with letters and numbers are given. Based on these conditions, determine the number printed on Box X.