Mr. Hugo borrowed 20,000 which will be repaid in 10 years and bears an effective annual interest rate of 5%. At the end of each year Mr. Hugo can set aside 2600 money which is used to pay interest on the debt and the remainder is allocated to two sinking funds which pay 4% and 6% interest, respectively. If the allocations to the two sinking funds are the same each year, determine the amount remaining in the two sinking funds at the end of 10 years. (please don't answer with excel)