The computer readable medium also comprises code for analyzing the secondary PAN, {HEAD ~ code} for analyzing {TAIL ~ the primary PAN}, and code for sending an authorization response message, wherein the authorization response message indicates approval or disapproval of the transaction 
for analyzing
The computer readable medium also comprises code for analyzing the secondary PAN , { HEAD ~ code } for analyzing { TAIL ~ the primary PAN } , and code for sending an authorization response message , wherein the authorization response message indicates approval or disapproval of the transaction
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH