Stepping Number: Python Code

Python code for stepping number. A number is called
a stepping number if adjacent digits, as well as the
first and last digits, differ by 1.Write a program
to generate all the Stepping numbers( in base 11) in a given range and count it. For example, 8789A9 is a 6-digit base 11 stepping number. 9A0A and 234 are not stepping.

def SteppingNumber():

    numbDigits = [0 for i in range (10000)]

    counter = 0

    lowerLimit = int(input("Enter the lower limit:"))

    upperLimit = int(input("Enter the upper limit:"))

    for j in range(upperLimit+1-lowerLimit):

        flag = False

        numb = j+lowerLimit

        N = numb

        length = len(str(numb))

        baseElevenlen = 0

        b = 0

        while numb > 0 :

            rem = numb%11

            if rem > 9:

                numbDigits[baseElevenlen] = 'A'

            else:  

                numbDigits[baseElevenlen] = rem

            numb = numb//11

            baseElevenlen +=1

               

        numbDigits.reverse()          

        for i in range(baseElevenlen):

            if numbDigits[i] == 'A':

                numbDigits[i] = 10

           

        for i in range(baseElevenlen-1):

            if numbDigits[i] == numbDigits[i+1]+1 or numbDigits[i] == numbDigits[i+1]-1:

                flag = True

            else:

                flag = False

                break;  

           

        if flag == True:

            if numbDigits[0] == numbDigits[baseElevenlen-1]+1 or numbDigits[0] == numbDigits[baseElevenlen-1]-1:

                flag = True  

            else:

                flag = False  

        if flag == True:

            print (N-1," is a Stepping Number")

            print ("In base Eleven (Reverse it)", numbDigits[0:baseElevenlen])

            counter +=1

    print ("Number of stepping numbers(base 11)",counter)

SteppingNumber()