Exam Preparation

failed_treshhold = int(input())
failed_times = 0
solved_problems_count = 0
total_grades = 0
last_problem = ''
has_failed = True

while failed_times < failed_treshhold:
    problem_name = input()
    if problem_name == 'Enough':
        has_failed = False
        break
    grade = int(input())
    if grade <= 4:
        failed_times += 1
    total_grades += grade
    solved_problems_count += 1
    last_problem = problem_name

if has_failed:
    print(f'You need a break, {failed_treshhold} poor grades.')
else:
    print(f'Average score: {total_grades / solved_problems_count:.2f}')
    print(f'Number of problems: {solved_problems_count}')
    print(f'Last problem: {last_problem}')