subjects = ['Algebra', 'Geometry', 'Informatics', 'Physics', 'Chemistry', 'Biology']

grades = []

for subject in subjects:

 grade = int(input(f"Enter grade for {subject}: "))

 grades.append(grade)

average = sum(grades) / len(grades)

print(f"Оцінка за: {average}")

if average < 4:

 print("Початковий ")

elif average < 7:

 print("Середній)

elif average < 10:

 print("Достатній")

else:

 print("Високій")