patch collision with upper wall

point.py

@@ -13,7 +13,7 @@ class Point:
             raise TypeError("You can compare only Point with Point")
 
     def __hash__(self) -> None:
-        return int(f"{self.x}000{self.y}")
+        return int(f"{abs(self.x)}000{abs(self.y)}")
 
     def __str__(self) -> str:
         return f"{self.x = } | {self.y = }"