week04: pytorch_main, prevented training time losing
week04: pytorch_main, prevented training time losing

total_steps == 3 * 10^6 -> last step in "for" cycle == 3 * 10^6 - 1
eval_freq == 5000
(3 * 10^6 - 1) % 5000 != 0 -> after last 4999 iterations agent is not evaluated
yandexdataschool/Practical_RL,yandexdataschool/Practical_RL