/data/
20160102_car.txt
20160102_bike.txt
20160104_car.txt
20160104_bike.txt
20160208_car.txt
20160208_bike.txt
20160308_car.txt
20160308_bike.txt
20160309_car.txt
20160309_bike.txt
20160314_car.txt
20160314_bike.txt
20160315_car.txt
20160315_bike.txt
20160316_car.txt
20160316_bike.txt
20160317_car.txt
20160317_bike.txt