What is the algorithm to place the comma's in the right locations? Please look at the restrictions (listed in the image) before answering this question. Thank you! C programming

Prints the integer value with commas to the file stream out and returns the number of characters printed The result (e.g. 12,345) must printed character by character using the provided char out function. So when value 12345 you'll print 1', '2', 'r', '3', '4' and '5', one by one To convert a digit (int) between 0 9 to a character simply add '0', e. g. 9 '0' results in 19 We'll discuss conversions like this in class Example usage print with commas (stdout, 1) prints 1 to the screen and returns 1 print with commas (stdout, 123) prints 123 to the screen and returns 3 print with commas (stdout, 1234) prints 1, 234 to the screen and returns 5 print with commas (stdout, 12345) prints 12, 345 to the screen and returns 6 Pre Points to an already opened file stream out value Has been initialized Post value is printed with commas using the provided char out function Restrictions You MUST use the provided char out function when printing You may NOT use other I/O, e.g. any printf or scanf variants You may NOT make any use of character/ string variables or arrays You may NOT use math.h or string h, nor any function declared within You may NOT use any additional libraries You may NOT use recursion