| | | | ︽ ︵ | ︶︾ | 5 6 | | | ︔ ︽ | ︵ ︶︾ | | | | | | | | | | | | | 4 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1 | ︽ | ︾ ︽ ︾ | 18 | | | | | | | | | | | | | | | | ︽ ︵ | ︶︾ | | | | | | | | | | | | | | | |