Rhonda deposits A dollars in an account paying 6.6 percent effective, and at the same time also deposits B dollars in another account paying 8.6 percent effective. After 8 years have passed, the combined total in the two accounts is 52000 dollars. In another 2 years, the balance in the account paying 8.6 percent effective is three times that of the other account. What is the balance in the account paying 6.6 percent effective 13 years after the initial deposit?