def is_number_balanced(num):
    num = (list(str(num)))
    num = [int(i) for i in num]
    half = len(num) // 2

    if len(num) % 2:
        lhs = num[:half]
        rhs = num[half + 1:]
    else:
        lhs = num[:half]
        rhs = num[half:]

    return sum(lhs) == sum(rhs)


print(is_number_balanced(9))
print(is_number_balanced(4518))
print(is_number_balanced(28471))
print(is_number_balanced(1238033))
print("\n\n")


def increasing_or_decreasing(seq):
    result = []

    for x in range(0, len(seq) - 1):
        if(seq[x + 1] > seq[x]):
            result.append(1)
        elif (seq[x + 1] == seq[x]):
            result.append(0)
        else:
            result.append(-1)

    if sum(result) == len(result):
        return "Up!"
    elif sum(result) == -len(result):
        return "Down!"
    else:
        return False


print(increasing_or_decreasing([1, 2, 3, 4, 5]))
print(increasing_or_decreasing([5, 6, -10]))
print(increasing_or_decreasing([1, 1, 1, 1]))
print(increasing_or_decreasing([9, 8, 7, 6]))
print("\n\n")


#  def get_largest_palindrome(num):




def sum_of_numbers(input_string):
    nums = [0]
    temp = ""
    prev = False

    for i in range(len(input_string)):
        if input_string[i].isdigit():
            if not i == len(input_string) - 1:
                temp += input_string[i]
                prev = True
            else:
                temp += input_string[i]
                nums.append(temp)
        else:
            if prev:
                nums.append(temp)
            prev = False
            temp = ""

    nums = [int(i) for i in nums]
    return sum(nums)


print(sum_of_numbers("ab125cd3"))
print(sum_of_numbers("ab12"))
print(sum_of_numbers("ab"))
print(sum_of_numbers("1101"))
print(sum_of_numbers("1111O"))
print(sum_of_numbers("1abc33xyz22"))
print(sum_of_numbers("0hfabnek"))
print("\n\n")


def birthday_ranges(birthdays, ranges):
    people = []
    counter = 0

    for period in ranges:
        for day in birthdays:
            if period[0] <= day and period[1] >= day:
                counter += 1
        people.append(counter)
        counter = 0

    return people


print(birthday_ranges([1, 2, 3, 4, 5],
                      [(1, 2), (1, 3), (1, 4), (1, 5), (4, 6)]))
print(birthday_ranges([5, 10, 6, 7, 3, 4, 5, 11, 21, 300, 15],
                      [(4, 9), (6, 7), (200, 225), (300, 365)]))
print("\n\n")


def group(elem):
    from itertools import groupby

    return [list(grp) for k, grp in groupby(elem)]


def capitalise(a):
    return a


def numbers_to_message(pressed_sequence):
    keypad = [[" "], [""], ["a", "b", "c"], ["d", "e", "f"],
              ["g", "h", "i"], ["j", "k", "l"], ["m", "n", "o"],
              ["p", "q", "r", "s"], ["t", "u", "v"], ["w", "x", "y", "z"]]

    pressed_sequence = group(pressed_sequence)
    # print(keypad)

    for item in pressed_sequence:
        print(len(item))
        if item == 1:
            continue
        else:
            continue

print(numbers_to_message([2, -1, 2, 2, -1, 2, 2, 2]))