Write a program to compute Letter grades for a course. The course records are in a file that will serve as the input file. Each line of the file contains a student’s last name, then one space, quiz scores, All on one line. The program should ask the instructor about the grading scheme. Based on the input grades and the grading scheme, the system will print out for the instructor the final letter grades for all students. The instructors can choose an option to save all the grades in a text file.

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Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.