Husai takes out $3,300 student loan at 6.3% to help him with two years of community college after finishing the two-year transfers to a state university and borrowers another $12,300 to defray expenses for the five semester he needs to graduate graduates for years and four months after acquiring the first loans and payments are deferred for three months after graduation. The second loan was acquired two years after the first and had an interest rate of 7.6%. Find the total amount of interest that was occur until payments begin.