def createTargetFromTwoNumbers( target=9, array=[7,2,11,15]):
    numbersIndexMap = {}
    for i in range(0, len(array)):

        number = array[i]

        if number > target :
            continue

        try:

            if type(numbersIndexMap[target-number]) is int :
                return[ i, numbersIndexMap[target-number] ]
        except:
            print "cause I need to escape the except case"

        numbersIndexMap[number]=i


def reverseNumber(number = 123):  ## I cheated

    if number > 0:
        sign = 1
    else:
        sign = -1

    number = number * sign

    ## thanks to Qoura

    reversed=0
    while number > 0 :
        digit = number%10
        reversed = reversed*10+digit
        number = number/10

    return reversed * sign

print createTargetFromTwoNumbers()
print reverseNumber()