Polar Bear Escape

This summer, you are very tired of the heat, and you decided to go to places where it's always cold. There is always snow here, and everywhere there are polar bears. Walking and admiring the beauty of nature, you discovered a strange cave. You decided to go inside and accidentally brought snow to the entrance. Now you are trapped and you need to look for another way out. Be careful, after all, it looks like there's someone else inside.