"Однажды, — продолжал мой папа, — учителю арифметики...

“Once,” my dad continued, “an arithmetic teacher got into an unusually interesting book. He wanted to read it and not to work with these little dunce. And then he figured out how to occupy them.” Children, ”he said,“ write all the numbers from units up to a hundred and put them. When you get an answer, tell me. "And he began to read ..."
http://pozneronline.ru/2006/05/6584/