| | | | | | ︽ | ︵ ︶︾ ︵ | ︽ ︾ ︶ ︽ ︾ | | | | | | ︽ ︾ | | 4 | | | | | | | | | | 2 | | | | ︵ | ︶ | | | | | 8 | | | 6 9 | | |