Crows are sitting on a tree. Robbo has an employee talking in a crow's language. He asked each of these crows how many crows they see ABOVE themselves? Crows see other crows in the entire tree, on both sides it is a trunk. The employee wrote down the crows' answers and sent them to you. Your job is to find out if the crows have told the truth. Lead out YES if the crows did not lie and NO if they lied.
Thanks to the authors of the tasks INTERNATIONAL SCRATCH CREATIVE PROGRAMMING OLYMPIAD 2023
