graduation 2

name = input()
year = 1
sum_grades = 0.0
repeat = 0
is_expelled = False
while year <= 12:
    grade = float(input())
    if grade < 4:
        repeat += 1
        if repeat > 1:
            is_expelled = True
            break
        continue
    sum_grades += grade
    year += 1
if is_expelled:
    print(f"{name} has been excluded at {year} grade")
else:
    average = sum_grades / 12
    print(f"{name} graduated. Average grade: {average:.2f}")