How to divide dataset into training set and validation set in 10,848 frames

[anrkq1024]

Hi,
I have a problem with using a dataset that is published by the author of SqueezeSeg.
In a paper, 8,057 are used for training and 2,791 are used for validation. However, the given dataset is not divided. The total 10,848 frames just are given. I wonder how to divide the total dataset into the training and validation set. Please help me !!

Thanks,