group of boys in a gym, possibly in Chaikovsky, Russia, engaged in physical training

group of boys in a gym, possibly in Chaikovsky, Russia, engaged in physical training. They are all wearing blue t-shirts and dark shorts. Most of them are sitting on the floor with their legs extended or bent, in various stages of an exercise, possibly core work or stretching. One boy in the foreground is lying down with his knees bent. In the background, there is gym equipment, including a rowing machine and mats. The walls are painted yellow, and there are posters and a clock on the wall. There is also a red boxing ring in the background. The lighting suggests it is daytime, with natural light coming from windows.