Write a program that calculates the average and the sum of class grades: $A=90,B=80,$

$C=70,D=60,E=50,$ and $F=40$ and store them in the memory at locations $"$ AVG $"$ and

"SUM" respectively. The program should also full fill the following specification:

The Name of the program is "Student Average".

Each printed page has $49$ lines and $90$ character in each line

The Data Segment starts at physical address $1A000H,$ where we store a string of three

characters $x,Y,$ and $Z,$ followed by $38$ empty bytes, grades of the students come after that.

The average and summation of the students' grades are also saved in two words in the

memory at locations exactly after the last student grade.

The Stack Segment starts at physical address $70000H$ and occupies a full segment space.

The Code Segment starts at logical address $($CS:$7000$H$)$