What Is the Mass of the Black Hole?

A virtual particle becomes a real partic iknow that and this happens edge of the event horizon. As soon as the other one enters the blind hole, this particle must gain mass for the law of conservation of energy to workaway. This particle that's now being emitted basically has come out of literally nowhere because where do that come from? And the answer to the information paradox, for if i put something in, why is it coming out? Is that it's the information or the matter in our universe is still balanced. Because equally that goes in equally comes out.