ap = brkstring (dp, " ", "\n");
for (i = 0; ap && *ap; i++, ap++)
ivector_push_back (seqnum, seq_getnum (mp, *ap));
num_unseen_seq = i;
ap = brkstring (dp, " ", "\n");
for (i = 0; ap && *ap; i++, ap++)
ivector_push_back (seqnum, seq_getnum (mp, *ap));
num_unseen_seq = i;