Brave Horsemen(1976)

Mischievous boys, who consider themselves brave horsemen, teach the puppy Julbars to scare everyone. Once, to scare a neighbor girl, they painted the puppy as a tiger, and he caught a cold. Instead of helping their Julbars, the boys decided to take revenge on the girl for her kindness, and she cured the sick puppy. And she had one more friend. He who is kinder is braver, because he is kind!