https://huggingface.co/datasets/HYUKI5/nvidia__Nemotron-Cascade-RL-Math/resolve/main/math.json
hf download hf://datasets/HYUKI5/nvidia__Nemotron-Cascade-RL-Math/math.json
curl -L -o math.json https://huggingface.co/datasets/HYUKI5/nvidia__Nemotron-Cascade-RL-Math/resolve/main/math.json
