I'm trying to import a resources from OU

I try to set the import domain wizard , peek to domain name the user and password and in the "OUs to import" I try to put several option Full OU OU=Servers,OU=Strauss,DC=str,DC=corp,DC=strauss,DC=co,DC=il - and it import all computers in the domain , try strauss\servers - and noting imported

What is the right way to put in the OU field?