6) Base your answer using the following version of the Modulus 11-check digit found in Chapter 6. For a four-digit account number: 1. Multiply each digit separately by the corresponding digit in the sequence: 5, 4, 3, 2. 2. Add results of digit multiplication in Step 1, digit-by-digit. 3. Subtract Step 2 results from the next highest multiple of 11. 4. The Step 3 result is the check digit. Required: Calculate the check digit for each of the following account numbers: a. 8369 b. 2386