initial_password = "password123"
user_password = "password123"

if user_password == initial_password:
    print("Ви увійшли в систему")
else:
    print("Неправильний пароль")

day_number = 3

if day_number == 1:
    print("Понеділок")
elif day_number == 2:
    print("Вівторок")
elif day_number == 3:
    print("Середа")
elif day_number == 4:
    print("Четвер")
elif day_number == 5:
    print("П'ятниця")
elif day_number == 6:
    print("Субота")
elif day_number == 7:
    print("Неділя")
else:
    print("Неправильний номер дня тижня")

number = 5
for i in range(1, 11):
    print(f"{number} * {i} = {number * i}")

numbers = [1, 2, 3, 4, 5]
sum_of_numbers = sum(numbers)
print(f"Сума чисел: {sum_of_numbers}")

factorial_number = 5
factorial = 1
for i in range(1, factorial_number + 1):
    factorial *= i
print(f"Факторіал числа {factorial_number}: {factorial}")

for i in range(1, 51):
    if i % 2 == 0:
        print(i)

start = 10
end = 50

for num in range(start, end + 1):
    if num > 1:
        for i in range(2, int(num**0.5) + 1):
            if num % i == 0:
                break
        else:
            print(num)