printf("SN\treads QC failed:\t%ld\n", (long)stats->nreads_QCfailed);
printf("SN\tnon-primary alignments:\t%ld\n", (long)stats->nreads_secondary);
printf("SN\ttotal length:\t%ld\n", (long)stats->total_len);
printf("SN\treads QC failed:\t%ld\n", (long)stats->nreads_QCfailed);
printf("SN\tnon-primary alignments:\t%ld\n", (long)stats->nreads_secondary);
printf("SN\ttotal length:\t%ld\n", (long)stats->total_len);