def calc():
    choice = raw_input("What type of interest is it you want to calculate?\n1. Simple Interest - 1\n2. Compound Interest - 2\nPlease Choose 1 or 2: ")

    if choice == "1":
        p = raw_input("Enter the Amount Borrowed: ")
        r = raw_input("Enter the Interest Rate: ")
        t = raw_input("Enter the Amount of Time: ")
        i = int(p) * float(r) * int(t)
        ans = float(i) + float(p)
        print "You Will Owe %r Dollars Back to Your Lender" % ans


    if choice == "2":
        p = raw_input("Enter the Principal Amount: ")
        i = raw_input("Enter the Interest Percentage: ")
        t = raw_input("How Many Intervals Until Loan Ends?: ")
        ans = float(p) * (1 + float(i)) ** float(t)
        print "You'll Owe Back %r in Interest." % ans
        calc()

    else:
        calc()

calc()