import random
import time

ball = 0 
work = True

def timer():
    num_of_secs = 5
    while num_of_secs:
        m, s = divmod(num_of_secs, 60)
        min_sec_format = '{:02d}:{:02d}'.format(m, s)
        print(min_sec_format, end='\r')
        time.sleep(1)
        num_of_secs -= 1

def mat(a, b, m):
    global ball
    global work
    match m:
        case 1:
            z = '+'
            sum = a+b
        case 2:
            z = '-'
            sum = a-b
        case 3:
            z = '*'
            sum = a*b
        case 4:
            z = '/'
            sum = a/b
    print(a,z,b, '= ?')
    if int(input('= ')) == sum:
        ball = ball + 1
    else:
        work = False
        print('Ошибка. Твои баллы: ', ball)

def score():
    c1 = 1
    c2 = 9
    global ball
    global work

    while work:
        a = random.randint(c1,c2)
        b = random.randint(c1,c2)
        m = random.randint(1,4)
        mat(a, b, m)

score()