name = input()

year = 1
fail_count = 0
total_grade = 0

while year <= 12:
    grade = float(input())
    if grade < 4:
        fail_count += 1
        if fail_count == 2:
            break

    else:
        total_grade += grade
        year += 1


if year >= 12:
    print(f"{name} graduated. Average grade: {total_grade/12:.2f}")
else:
    print(f"{name} has been excluded at {year} grade")