# Program 15: Sum of Digits
def main():
    num = int(input("Enter number: "))

    total = 0

    while num > 0:
        digit = num % 10
        total = total + digit
        num = num // 10

    print("Sum of digits:", total)

main()

Enter number:  12


Sum of digits: 3

# Program 16: Palindrome Number
def main():
    num = int(input("Enter number: "))

    original = num
    reverse = 0

    while num > 0:
        reverse = reverse * 10 + num % 10
        num = num // 10

    if original == reverse:
        print("Palindrome")
    else:
        print("Not Palindrome")

main()

Enter number:  33


Palindrome

# Program 17: Fibonacci Series
def main():
    n = int(input("Enter terms: "))

    a = 0
    b = 1

    for i in range(n):
        print(a)
        temp = a + b
        a = b
        b = temp

main()

Enter terms:  2


0
1