Graduation p2.

name = input()
counter = 0
sum_mark = 0
counter_nagative = 0
while counter < 12:
    mark = float(input())
    if mark >= 4.00:
        counter = counter + 1
        sum_mark = sum_mark + mark
    else:
        counter_nagative = counter_nagative + 1
        if counter_nagative >= 2:
            print(f"{name} has been excluded at {counter +counter_nagative-1} grade")
            break
    #counter = counter + 1
if counter ==12:
    avarage_mark = round((sum_mark / counter),2)
    print(f"{name} graduated. Average grade: {avarage_mark:.2f}")