in for /f trying save result to var in build step var z printing empty

@echo off
for /f "tokens=9,10 delims=; " %%%%s in ('findstr ".crcSection" C:\TeamCity\buildAgent\work\56959e35e309dd04\Sources\FW\PCD_912\LPCxpresso\App\Release\crcdef.h') do (
ECHO %%%%s
SET z=%%%%s~dpa
ECHO %%z%%

)