Hi author, when I run `bash download_mmnist.sh`, it shows "404 Not Found" for the webpage http://yann.lecun.com/exdb/mnist/train-images-idx3-ubyte.gz. Could you please tell me where else I can download the dataset for training? 
Hi author, when I run
bash download_mmnist.sh, it shows "404 Not Found" for the webpage http://yann.lecun.com/exdb/mnist/train-images-idx3-ubyte.gz. Could you please tell me where else I can download the dataset for training?