Bill and Tom

You knew Bill and his brother Tom. And one day Bill invited you to a party. It was already night, and you were going to his place. He had called and written to you, telling you that you should definitely come. You went into the yard and started looking for him. You noticed that there were a lot of people around. Making your way through the crowd, you asked passers-by where Bill and Tom were, but they didn’t know. Soon you reached the veranda and noticed him. You approached him and noticed that Bill was sitting on the left, and Tom in the middle, and some guy was sitting next to them.