A strange and funny story

In 1960, in a hospital for the insane (mental illnesses) in a Turkish city, and as a result of the negligence of the center guards, 423 insane people were able to escape to the city streets...

This led to a big problem, and the administrative governor immediately summoned the hospital doctor, whose name was (Mu'tamad), asking him to solve the problem immediately..

Immediately, the famous doctor "Mu'tamad" brought a whistle, and asked the governor and some employees to hold him from behind and play the train game, and they went out to the city streets while he whistled and called (Toooo....) and he represented the head of the train and behind him (the locomotives) each one holding the other...!

What the doctor expected happened, every escaped madman got on the train, and Dr. Moatamad succeeded in gathering the madmen, and took them to the hospital, and the problem was solved, and the administrative governor was happy, and they thanked Dr. Moatamad for his good behavior..

The problem is that in the evening, when they checked the madmen who came with the train and arrived at the hospital, their number was 612 madmen, knowing that the number of escapees was only 423...

If the incident happened today, how many do you expect to return?!!$NEIRO