import datetime, random


def getBirthday(numberOfBerthday):
    birthdays = []
    for i in range(numberOfBerthday):
        start_of_year = datetime.date(2000, 1, 1)
        randomNumber_of_Days = datetime.timedelta(random.randint(1, 364))
        birthday = start_of_year + randomNumber_of_Days
        birthdays.append(birthday)
    return birthdays

def getMatch(birthdays):
    if len(birthdays) == len(set(birthdays)):
        return None

    for a, birthdayA in enumerate(birthdays):
        for b, birthdayB in enumerate(birthdays[a + 1:]):
            if birthdayA == birthdayB:
                return birthdayA

# Создаем картеж
months = ('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
          'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec')

while True:
    """Ввод пользователя"""
    print("How many birthdays shall i generate? (Max 100)")
    """Добавь потом в сам цикл while"""
    responses = input("> ")
    if responses.isdecimal() and (0 < int(responses) <= 100):
        numBDay = int(responses)
        break

print("Here are ", responses, " birthdays:")
birthdays = getBirthday(numBDay)
for i ,birthday in enumerate(birthdays):
    if i != 0:
        print(', ', end='')
    montName = months[birthday.month - 1]
    dateText = f"{montName} {birthday.day}"
    print(dateText, end='')

print()
match = getMatch(birthdays)

print("In this simulations, ", end='')
if match != None:
    montName = months[match.month - 1]
    dateText = f"{montName} {match.day}"
    print(f'multiple peple have a birthday on {dateText}')
else:
    print("There are no matching birthdays.")

print("Lets run anuther 100_000 simulater ")

simMatch = 0
for i in range(100_000):
    if  i % 10_000 == 0:
        print(i , 'simulations run ...')
    birthdays = getBirthday(numBDay)
    if getMatch(birthdays) != None:
        simMatch += 1
print("100_000 simulations run.")

probability = round((simMatch / 100_000) * 100, 2)
print(f"Out jf 100_000 simulations of {numBDay} peple, there was a\n"
      f"matching birthday in tht group {simMatch} times. This means\n"
      f"that {numBDay} peple have a {probability} % chanse jf\n"
      "having a matching birthday  in their group.\n")