They learn at school.

A young girl holds a sign with "1-A" while a boy beside her screams, set against a blurred background with the text "Здравствуй, школа!" below. A cartoon depicts a boy with a backpack looking at a prison cell with a man behind bars, with a speech bubble saying "А мне еще семь лет сидеть за партой..." and balloons floating nearby. A sign on a chain-link fence reads "ГУЛЯТЬ НА ТЕРРИТОРИИ ШКОЛЫ С ДЕТЬМИ ЗАПРЕЩЕНО! ЭТО ОПАСНО!" with a park visible behind it. A handwritten note on graph paper asks "Где тетрадь? Фала!! А что? =)) Р А НИЧО!" with the number 2 written below.