On her tenth birthday Linda Joness parents decide to deposit $4,000 in a savings account for their daughter. They intend to put an additional $4,000 in the account each year on her 11th, 12th, ..., 17th birthdays.

Assume that the bank pays Lindas parents 8% on positive account balances but charges them 10% on negative balances.

If Lindas parents can only deposit $4,000 per year in the years preceding college, how much will they owe the bank at the beginning of year 22 (the year after Linda finishes college)?