Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat frostbite in dogs [title] Move your dog inside. [step] The first thing you should do for your dog is to get them out of the cold weather. You should move them into a warm environment, like your house.

Ending1: Make sure to be gentle with your dog, especially around the frostbitten skin. [title] Treat any hypothermia first. Ending2: You shouldn't place them near walls or fireplaces. The warmth may help loosen up the stiffness in your dog's knees. Ending3: As soon as you notice symptoms of frostbite, get them outside. [substeps] Do not leave the area until you have thoroughly treated the dog's wound. Ending4: You can place an ice pack or a scarf under the dog's feet or under the leash, in the same place where you left them. This will help to reduce frostbite in the first place.

Answer format: ending1/ending2/ending3/ending4