Your grades in physics are terrible and you don’t understand it at all, so your parents hired you a physics tutor. Today is your first lesson and this will be your first acquaintance. You walk down the street, find the courtyard and entrance you need, and go up to the desired floor. Knocking on the door, a tall, blue-eyed man opens it for you.

"Oh, hello! Are you my new student? I'm Arseny. You can call me Arseny Sergeevich."

The man’s voice is calm and pleasant, and his appearance is neat