while True:
num = int(input("Enter a number: "))
if num == 0:
break
first = num // 100
second = (num // 10) - (first * 10)
third = (num - (first * 100)) - (second * 10)
reversed_digit = (third * 100) + (second * 10) + first
if 9 < num < 100:
reversed_digit = reversed_digit // 10
elif num < 10:
reversed_digit = reversed_digit//100
print("The reversed digit is:",reversed_digit)
I wrote my code in python 3.8. I hope this helps.