For each customer record, prompt the user what he/she wants to do on that particular record.  Possible inputs are:  d for deposit.  The program will then have to prompt for the amount. w for withdrawal.  The program will then have to prompt for the amount. c for close. a for advacing to the next customer. Your program will keep prompting the user until user had put 'a' on the last record.  Then, the program will create a new file called "NEW_MASTER_BANK_RECORDS.txt" with updated customer records.