The order of lane in Tusimple dataset

[namKolorfuL]

Hi, I want to create custom dataset and train it along side with Tusimple's but I dont know the lane order of the Tusimple format to synergize with my own data. How could that be done? What is the lane order from Tusimple? Is it from left-most lane to right-most lane? So in labelme, If I were to label my data from left to right and named it L1 to L4, would that work with tusimple?