MSIT Grade Calculator

My code's not perfect, but it works. Enter your grade in any case of alphabet.
Digital Literacy
Computational Thinking
CSPP-1
CSPP-2
ADS-1
ADS-2
DBMS
Cyber Security
Computer Networks Foundation
ICS
SEF
Web Programming
Social Computing
Mobile Programming
Cloud Computing
Practicum
Competetive Programming
Data Analytics
Specialization - 1
Specialization - 2
Specialization - 3
Specialization - 4
Practicum - 1
Practicum - 2
Practicum - 3