1. (25 points) $1000 is invested in each of two accounts A and B for 10 years. Account A earns an effective interest rate of 8% for the first 5 years, and simple interest at a rate of 10% for the next 5 years. Account B earns simple interest at a rate of 8% for the first 5 years, and an effective interest rate of 10% for the next 5 years. Determine which of account A or B has more money at the end of 10 years, and find the difference of their balances