# Codeblock 3
target_0 = torch.tensor([[0., 0., 200., 200.]])
pred_0   = torch.tensor([[20., 20., 200., 200.]])
iou_0    = intersection_over_union(target_0, pred_0)
print('iou_0:', iou_0)

target_1 = torch.tensor([[0., 0., 200., 200.]])
pred_1   = torch.tensor([[100., 100., 200., 200.]])
iou_1    = intersection_over_union(target_1, pred_1)
print('iou_1:', iou_1)

target_2 = torch.tensor([[0., 0., 200., 200.]])
pred_2   = torch.tensor([[180., 180., 200., 200.]])
iou_2    = intersection_over_union(target_2, pred_2)
print('iou_2:', iou_2)