Graduation

name = input()
count = 0
average = 0
sum_evaluation = 0
count_fail = 0

while count < 12:
    evaluation = float(input())

    if 4 <= evaluation <= 6:
        sum_evaluation += evaluation
        count += 1
    elif 2 <= evaluation < 4.00:
        sum_evaluation += evaluation
        count += 1
        count_fail += 1

    if count_fail == 2:
        break

if count_fail == 2:
    print(f'{name} has been excluded at {count - 1:.0f} grade')
else:
    average = sum_evaluation / count
    print(f'{name} graduated. Average grade: {average:.2f}')