import time

# unweighted gpa calculator
print("---------------- \nmade by [null]")
print("Unweighted GPA Calculator \n----------------")
time.sleep(1.25)

skadoosh = "y"
while skadoosh == "y" or skadoosh == "yes":
    coconut_shrimp_is_bomb = []
    # you cant change their mind, it's really good

    print("Enter how many classes you take: ")
    fragile = int(input())
    persistent = 1

    while persistent != fragile + 1:
        print("Enter class", persistent, "letter grade (B+, B, B-, etc.):")
        orange = input()
        orange = orange.upper()
        coconut_shrimp_is_bomb.append(orange)
        persistent += 1
    print(coconut_shrimp_is_bomb)
    nut = 0
    chimney = 0
    for cheeks in coconut_shrimp_is_bomb:
        if cheeks == "A+" or cheeks == "A":
            nut = nut + 4.0
        elif cheeks == "A-":
            nut = nut + 3.7
        elif cheeks == "B+":
            nut = nut + 3.3
        elif cheeks == "B":
            nut = nut + 3.0
        elif cheeks == "B-":
            nut = nut + 2.7
        elif cheeks == "C+":
            nut = nut + 2.3
        elif cheeks == "C":
            nut = nut + 2.0
        elif cheeks == "C-":
            nut = nut + 1.7
        elif cheeks == "D+":
            nut = nut + 1.3
        elif cheeks == "D":
            nut = nut + 1.0
        elif cheeks == "F":
            nut = nut + 0.0
    mystic = nut / len(coconut_shrimp_is_bomb)
    round(mystic, 2)
    print(round(mystic, 2), "is your unweighted GPA")
    time.sleep(2)


    print("\n\nAgain? y/n:")
    skadoosh = str(input())

print("---------------- \nmade by [null] \n----------------")
time.sleep(1.25)
# coconut shrimp is bomb