Hmm… interesting. I haven't seen one of these in years. Here's what you need to do:
Copy the six pieces onto a sheet of paper. Then, cut them out and reassemble them until you have a four-by-four square. All four rows, all four columns, and both diagonals of the square must add up to the same number. That number is your flight number for Brazil.
Simple, huh?
Okay, then — once you've solved it, choose the number below that is the sum of any row, column, or diagonal:
