HELP NEEDED URGENT!! I don't know what I am doing wrong and need help to fix my program.

What is your numberacnunbers=10e0999 You entered999 digit =27 2.2 Sum the digits in an integer. (Programming Exercise 2.6) Write a program that reads an integer between 0 and 1000 and adds all the digits in the integer. For example, if an integer is 932, the sum of all the digits is 14. Hint: Use the \% operator to extract digits, and use the / operator to remove the extracted digit. For instance, 932%10=2 and 932/10=93 Example: If you entered the number to be 999 then your program should show the sum of the digits to be 27