def convert_bytes_format_127_to_256(numbers: list[int]):
    new_list = []
    for num in numbers:
        if num > 0:
            new_list.append(num)
        else:
            new_list.append(num + 256)
    return new_list


def convert_bytes_format_256_to_127(numbers: list[int]):
    new_list = []
    for num in numbers:
        if num < 128:
            new_list.append(num)
        else:
            new_list.append(num - 256)
    return new_list