The following is the grading policy for assignment 6:

1.20% The program can pass the compilation process
   -  There is no error found after program had been compiled in VC environment.

2.40% The correctness of the program - each one: %8 + ending condition %8

This program reports perfect numbers
Key in an integer number = ?10000
Perfect numbers between 1 and 10000 are:
6
28
496
8128

Key in an integer number = ?0
Thank you for using this program! Bye!

3.20% comments:
      5% Basic information
      5% problem description and I/O description.
      5% function description
      5% test description

4.20% style:
      5% file_name (If xxxxxxxxx_6.c, xxxxxxxxx is student's id number)
      5% is I/O interface friendly?
      5% variable-name
      5% indentation