Here, 13 stage counter of counters X0 to X12, among the counters X0 to X13, corresponds to {HEAD ~ n stage counters} according to {TAIL ~ the present invention} 
according to
Here , 13 stage counter of counters X0 to X12 , among the counters X0 to X13 , corresponds to { HEAD ~ n stage counters } according to { TAIL ~ the present invention }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL