def load_input_data(input_file):
    """Read in the input file to a tuple of two strings

    Parameters
    ----------
    input_file : filename
        File containing two rows consisting of comma separated strings
        corresponding to instructions to outline the path for two wires

    Returns
    -------
    instruction_tuple : tuple
        tuple of two strings, one corresponding to each wire
    """
    instruction_list = []

    with open(input_file, 'r') as f:
        for line in f:
            instruction_list += [line.strip()]

    instruction_tuple = tuple(instruction_list)

    return instruction_tuple