| 2 1 3 ︽ ︾ | | ︽ | | ︾ | | ︽ ︾ | | | | | | | | | | | | | | | | ︽ ︾ | ︔ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ︵ ︶ | ︵ ︶ | | ︵ | ︶ | | | ︵ ︶ | | ︵ ︶ | | ︵ ︶ | | ︵ ︶ | | ︵ ︶ ︽ | ︾ | ︵ ︶ | | | | |