Upload checkpoint-750: step=750, epoch=0, train_acc=0.766

Upload checkpoint-500: step=500, epoch=0, train_acc=0.769

Upload checkpoint-250: step=250, epoch=0, train_acc=0.777

Upload checkpoint-1250: step=1250, epoch=0, train_acc=0.775

Upload checkpoint-1000: step=1000, epoch=0, train_acc=0.772

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