To save for their daughter's college education, Fred and Alice deposit $1080 at the end of each semiannual period into an account that pays 1.8% interest compounded semiannually. After 10 years, they move the balance to a new account which pays 4.8% compounded monthly and start depositing $390 per month for 8 years. How much will the account contain at the end of this 18-year period