For instance, steganography using sudoku puzzles has as many keys as there are possible solutions of a sudoku puzzle, which is 7021670999999999999♠ × 10 21 . 
Imagine you "doubled" the triangle (flip it around one of the upper edges) to make a square-like shape (a parallelogram ) which can be changed to a simple rectangle :
Your Perfect Last-Minute Halloween Costume, According to Your Zodiac Sign
This is the last section of the SOAP note where you write how you are going to address the patient’s condition and problem. It may involve requiring an additional test to verify a diagnosis or a treatment that is appropriate to treat the patient’s medical note condition, such as surgery or medication.