def main():
    print "This program calculates the future value"
    print "of an investment."

    principal = input("Enter the initial principal (i.e. 100.00) ")
    apr = input("Enter the annualized interest rate: (i.e. 0.03) ")
    number = raw_input("Enter the number of years of the investment: (i.e. 10) ")
    time = int(number)
    print " {:6}   {:10}".format("year", "principal")
    print " {:6}   {:10}".format("-"*6, "-"*10)
    print " {:6}   {:10.2f}".format(0, principal)    
    for i in range(time):
        principal = principal * (1 + apr)
        print " {:6}   {:10.2f}".format(i+1, principal)
    
main()