Four school graduates congratulate their teacher of mathematics Yelena Sergeyevna on her birthday and ask her to return them their graduate works on mathematics in order to change them before the marks. Yelena Sergeyevna strongly objects...
| Directing | Eldar Ryazanov | Director |
| Writing | Lyudmila Razumovskaya | Theatre Play |
| Writing | Lyudmila Razumovskaya | Writer |
| Writing | Eldar Ryazanov | Writer |
| Production | Leonid Vereshchagin | Production Director |
| Camera | Vadim Alisov | Director of Photography |
| Costume & Make-Up | Natalya Ivanova | Costume Design |