c++

16.4 Lab 16 - While Loops - Sum of Digits Create a program which will implement the sum of digits. When completed, the program will allow the user to input a positive integer then the program will add all the digits of this integer and output the sum. For example, if the user enters 325 then the program will output 10 Test your program with the following inputs a. 5 (sum is 5) b. 107 (sum is 8 ) C. 5148 (sum is 18)