for(int j=0; j<=len-kmer_len; j++)
                    {
                        std::string kmerstrfromfastq = seqs[i].substr(j, kmer_len);
                        Kmer mykmer(kmerstrfromfastq.c_str());
                        Kmer lexsmall = mykmer.rep();
                        allkmers[MYTHREAD].push_back(lexsmall);
                        hlls[MYTHREAD].add((const char*) lexsmall.getBytes(), lexsmall.getNumBytes());
}