def freq_at_bit(in_data: list, position: int) -> tuple:
    """Returns frequency of bit '0' and '1' in the position 'position' for input data (list of str)
    Args:
        in_data (list): list of str
        position (int): position to check the bit in
    Returns:
        tuple: (int, int)
    """
    bits = [0, 0]  # frequency of '0' and '1' in corresponding positions
    for item in in_data:
        bits[int(item[position])] += 1
    return tuple(bits,)