# Note: your assignments should have docstring
#   comments.  They are not here so the program can
#   be more easily displayed during class.
#
def validateInput(inputString):
    ans = input(inputString)
    isSure = input("Are you sure that is correct?  Enter yes or no: ")
    while isSure != 'yes':
        ans = input("Please try again: ")
        isSure = input("Are you sure that is correct?  Enter yes or no: ")
    return ans

def getAmount(expense):
    return float(validateInput("Enter the amount you pay for " + expense + " in the form xx.yy: "))

def getTimes():
    return int(validateInput("Now please enter the number of times per yer this cost is incurred.: "))

def getPrintExpenses(expenses):
    annualCosts = 0
    for e in expenses:
        annualCosts += getAmount(e) * getTimes()
    print("Your total monthly cost is $",format(annualCosts / 12,",.2f"),sep = "")
    print("Your total annual cost is $",format(annualCosts,",.2f"),sep = "")

def main():
    expenses = ["loan payment", "insurance", "gas", "oil","maintanence"]
    getPrintExpenses(expenses)    

main()