def load(self, f_in_1, f_in_2, f_out_1, f_out_2):
    file_pairs = [(f_in_1, f_out_1), (f_in_2, f_out_2)]
    for pair in file_pairs:
        with open(pair[0]) as f_in, open(pair[1], 'w') as f_out:
            for line in f_in:
                parts = line.split()
                f_out.write('{{{}:{}}}\n'.format(parts[2], parts[0]+parts[3:7]))