import torch

[x_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [y_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [x_valid](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [y_valid](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor") = map(
    [torch.tensor](https://docs.pytorch.org/docs/stable/generated/torch.tensor.html#torch.tensor "torch.tensor"), ([x_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [y_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [x_valid](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [y_valid](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"))
)
n, c = [x_train.shape](https://docs.pytorch.org/docs/stable/size.html#torch.Size "torch.Size")
print([x_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"), [y_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor"))
print([x_train.shape](https://docs.pytorch.org/docs/stable/size.html#torch.Size "torch.Size"))
print([y_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor").min(), [y_train](https://docs.pytorch.org/docs/stable/tensors.html#torch.Tensor "torch.Tensor").max())