How much do you have to deposit today so that, beginning 11 years from now, you can with draw $9000 a year for the next 8 years (periods 11-18) plus

How much do you have to deposit today so that, beginning 11 years from now, you can with draw $9000 a year for the next 8 years (periods 11-18) plus an additional amount $18000 in the last year (period 18)? Assume an interest rate of 6%