ss

fails = int(input())
counter = 0
fail_counter = 0
grade = 0
name = ""
last_name = ''
while name != "Enough":
    name = input()
    if name == 'Enough':
        total_score = grade / counter
        print(f"Average score: {total_score:.2f}")
        print(f"Number of problems: {counter}")
        print(f"Last problem: {last_name}")
        break
    score = int(input())
    if score <= 4:
        fail_counter += 1
        if fail_counter == fails:
            print(f"You need a break, {fail_counter} poor grades.")
            break
    counter += 1
    grade += score
    last_name = name