How to solve the below code!? Armstrong number between given intervals in python

Question

Need solution for python code!

How can we find the armstrong numbers in given interval.

I have written the code successfuly to identify the number, but could not be able to get the desired output.

My code :

lower = int(input())  
upper = int(input())  
  
for num in range(lower,upper + 1):  
    sum = 0  
    temp = num
    armstrong = ""
    while temp > 0:  
        digit = temp % 10  
        sum += digit ** 3
        temp //= 10 
        if num == sum:  
            armstrong = armstrong + (str(num) + " ")
            print(armstrong) 

Case - 1 Input : 150 200

Expected out put : 153 This case was successful.

Case - 2: Input : 1 3

Expected output : 1 2 3 Could not get the proper output for this one!

Answer 1

The code you have written only works for numbers between 100 and 999 because of line:

sum += digit ** 3