2N+1 rows and {HEAD ~ 2M+1 columns}, wherein N and {TAIL ~ M} are integers, said 2N+1 rows and 2M+1 columns comprising at least three rows and at least five columns or at least five rows and at least three columns 
wherein
2N+1 rows and { HEAD ~ 2M+1 columns } , wherein N and { TAIL ~ M } are integers , said 2N+1 rows and 2M+1 columns comprising at least three rows and at least five columns or at least five rows and at least three columns
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH