Different image number of USPS dataset #7

Hi!
I've run some experiemnts using your Digit-Five.zip. But I find the image number of USPS dataset strange.

The load_usps function prints

usps train X shape-> (29752, 1, 28, 28)
usps train y shape-> (29752,)
usps test X shape-> (1860, 1, 28, 28)
usps test y shape-> (1860,)

However, the paper says 9298 USPS images are used as training and testing images. Which one is the correct number?