A hospital is infected with 16 patients. The patient number 13 is recovered from coronavirus and want to say goodbye to all the remaining patient by visiting every patient exactly once.
However, If the recovered patient enters any room twice, he will get infected again.

What path he must take to escape from room-13 to room-4?

Coronavirus Escape From Hospital Brain Teaser

The Patient will follow the path from room number-13 to room-no.4 as shown in the picture below.