Assuming raw data is in A2:B5, and a,b,c etc in D2, D3 etc.
=INDEX($A$2:$A$5,MATCH(" "&D2&" ",$B$2:$B$5,0))
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.