# Finding the factorial.
def factorial(n):
fact = 1
for i in range(1,n+1):
fact *= i
return fact
# Spliting the digits and adding it.
def split_and_add(number):
sum_of_digits = 0
while(number>0):
last_digit = number % 10
sum_of_digits += last_digit
number = int(number/10) # Removing the last_digit from the given number.
return sum_of_digits
# Taking the user input.
number = int(input("Enter the Number: "))
# Assigning the factorial from the factorial function.
factorial = factorial(number)
# Spliting and adding the factorial into answer.
answer = split_and_add(factorial)
# Printing the answer.
print(answer)