--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/b2c.out.fa	Wed Jul 17 17:47:45 2019 -0400
@@ -0,0 +1,189 @@
+>c1
+NNNNNAAGAGAGAGCACAGAGATTTATGATGATAGCAGGGTCTCTCCCTCGGGCATGCAG
+CAACGGTACCCCGTTCGTCACAGCTGGGGTTGAGGGTGATGCACCAGAAGACATTACTGA
+TACCTTGGAGAGGATCCTTTCTATCCAGGCTCAAGTATGGGTCACGGTGGCAAAGGCCAT
+GACTGCATATGAGACAGCAGATGAGTCAGAAACAAGAAGAATCAATAAGTATATGCAGCA
+AGGTAGGGTCCAGAAGAAGTACATCCTCCACCCCGTATGCAGGAGCGCAATCCAACTCAC
+AATCAGACAGTCTCTAGCGGTCCGCATCTTCTTGGTTAGCGAGCTTAAGAGAGGCCGCAA
+CACGGCAGGTGGGACCTCCACCTATTACAACTTGGTGGGGGATGTAGACTCATACATCAG
+GAACACCGGGCTCACTGCATTCTTCCTGACACTTAAATATGGAATTAACACCAAGACATC
+AGCCCTTGCACTTAGCAGCCTCTCAGGCGATATCCAAAAAATGAAGCAGCTCATGCGCTT
+ATATCGGATGAAAGGGGATAATGCGCCGTATATGACATTGCTCGGTGACAGTGACCAGAT
+GAGCTTTGCACCCGCTGAGTATGCACAACTCTACTCATTTGCCATGGGCATGGCATCAAT
+CCTAGATAAAGGAACTAGCAAGTACCAATTCGCCAGAGACTTTATCAGCTCATCATTCTG
+GACTTGGAGTAGAGTACGCTCAGGCTCAAGGAAGTAGCATAAATGAGGATATGGCCGCCG
+AGCTAAAGCTAACCCCAGCAGCAAGGAGAGGCTTGGCAGCTGCTGCCCAAAGAGTGTCTG
+AGGAGACCAGCAGCATAGATATGCTCACCCAACAAGCCGGGGTCCTCACCGGACTCAATA
+ACGGAGGCTCCCAAGCCCCCCAAGGTGCACCGAACAGATCACAAGGGCAACAGGACACTG
+GGGACGGGGAGACCCAATTTCTGGATCTGATGAGAGCGGTGGCAAATAGCATGAGAGAAG
+CGCCCAACTCTGCGCAGGGCAACCCCCAACTGGGGCCTCCCCCAACCCCTGCGACCTCCC
+AAGACAATGACACCGACTGGGGGTACTGACCAACAGCACCCAGCCTGCCTATATGAAACC
+ATTCCAACCCTTCCGTCTGCACCTCACCACCCAATCCGCAATCCCGCATAGCCAAACCCA
+CAGAGGGACCCCCCCGGTTCCCTCCTTTCCCTCTGCCTCACAACCCCACCTGCCCAAGGC
+AACATAGGTACAATGCGACTCACTAATGATCAATACAGGGCCAAAGAAATTAGAAAAAAG
+TACGGGTAGAAGGGAGTCATTCAGGGGTCAGGGCGAGTCACCCGGGTCTCCGCTCTCCCT
+TCTACCTAGTGGATTAGAGTGAATATGGCCACCTTTACAGATGCGGAAATCGACGAGCTC
+TTTGAGACCAGTGGAACTGTCATTGACAGTATAATTACTGCCCAAGGAAAACCAGTAGAG
+ACTGTCGGAAGGAGTGCAATCCCACAAGGCAAAACCAAGGCTTTGAGCACAGCATGGGAG
+AAACACAGGAGCATCCAGTCTCCAGCCAGCCAGGACACCTCCGATCGACAGGATAGACCA
+GACAAACCGCTGTCCACACCCGAGCAAGCGAGTCCGAACGACAGCCTGCCTGCCACATCC
+ACCGACCAGCCTCCCACTCAGAACGCAGATGAAGCCAGCGACACACAGCTCAAGACCGGA
+GCAAGCAACTCTCTGTTATCGATGCTTGATAAACTCAGCAATAAGTCATCTAATGCTAAA
+AAGGGCCCATGGTCGAGCCCTCAGGAAGGGCACAACCAACGTCTGAATCAACAACAGGGG
+AGCCAACCGAGCCGCGGGAACAGTCAAGAGAGACCGCAGAACCAGGCCAAGGTCATCCCT
+GGAAACCAGGTCACAGACGCGAACACAGCATATCATGGACAATGGGAGGAGTCACAACTA
+TCAGCTGGTGCAACCCATCATGCTCTCCGATTAGAGCAGAGCCAAGACAATACTCCTGTA
+TCTGTGGATCATGTCCAGTTACCTGTCGACTTTGCGCAGGCGATGATGTCTATGATGGAG
+GCGATATCACAGAGGGTAAGTAAAGTTGACTATCAACTGGACCTTGTCTTGAAACAGACT
+TCTTCCATCCCCATGATGCGGTCTGAAATCCAGCAACTGAAGACGTCTGTTGCGGTCATG
+GAAGCCAATTTGGGCATGATGAAGATCCTAGATCCTGGTTGTGCCAATGTTTCATCTCTA
+AGTGATCTACGGGCAGTTGCTCGATCCCACCCGGTTTTAATTTCTGGCCCCGGAGACCCA
+TCTCCTTATGTGACCCAAGGAGGCGAAATGGCACTCAATAAACTCTCGCAGCCGGTGCAA
+CACCCCTCTGAATTGATCAAACCTGCCATGGCAAGCGGGCCTGATATAGGATTGGAGAAA
+GACACTGTCCGTGCATTGATCATGTCACGCCCTATGCACCCGAGCTCTTCAACTAAGCTC
+TTGAGCAAACTGGACGCAGCCGGATCGATTGAGGAAATTAGGAAAATTAAGCGCCTTGCA
+CTGAATGGTTAATCACCACCGCAACCCGCAGCAGATCCCTGCCAACCTAACACCACACGG
+TATCCGCACCAAGCTCCTCTCTGCAAGCCCAAGGTCCAACACCTCAAGTGACAACCCTGT
+CCTGCTTCTTCTGCCCTGCTAAATGATCGCGCAGCTGCAATCAATCTAGCAATATTAGGG
+ATTAAGAAAAAATACGGGTAGAATCGGAGTGCCCTGATTGTGCCAAGATGGACTCATCTA
+GGACAATCGGGCTGTACTTTGATTCTACCCTTCCTTCTAGCAACCTGCTAGCATTCCCGA
+TCGTCCTACAAGATACAGGAGATGGGAAGAAGCAAATCGTCCCGCAATACAGGATCCAGC
+GTCTTGACTCGTGGACAGAGAGCAAAGAAGACTCAGTATTCATCACCACCTACGGATTCA
+TCTGTCAGGTCGGGAGTGAAGAAGCCACTGTCGGCATGATCAATGATAATCCCAAGCGCG
+AGTTACTTTCCGCTGCTATGCTCTGCCTAGGGAGTGTACCGAATGTCGGGGATCTTGTTG
+AGCTGGCAAGGGCCTGCCTCACTATGGCGGTGACATGCAAGAAGAGTGCAACTAACACTG
+AGAGAATGGTCTTCTCAGTAGTGCAGGCACCCCAGGTTCTGCAAAGCTGTAGGGTTGTGG
+CAAACAAATACTCGTCGGTGAACGCAGTCAAACACGTGAGAGCGCCAGAGAAGATCCCTG
+GGAGTGGAACCCTAGAGTACAAAGTAAACTTTGTCTCTCTGACCGTGGTGCCAAGAAAGG
+ACGTCTACAAGATCCCAACTGCAGCACTTAAGGTCTCTGGCTCCAGTCTGTACAATCTTG
+CGCTCAATGTCACGATTGATGTGGAAGTAGACCCGAAGAGCCCGTTGGTCAAATCTCTTT
+CAAAGTCAGACAGTGGGTACTATGCTAATCTCTTCTTACATATTGGGCTTATGTCCACTA
+TAGATAAGAAGGGGAAGAAAGTGACATTTGACAAGCTGGAAAGGAAGATACGGAGACTTG
+ATCTATCTGTAGGACTCAGTGACGTGCTCGGGCCTTCCGTACTTATAAAGGCGAGAGGTG
+CACGGACTAAGCTGCTGGCACCTTTCTTCTCCAGCAGCGGGACAGCCTGCTATCCCATAG
+CAAATGCCTCTCCACAGGTGGCCAAGATACTCTGGAGCCAAACTGCGTGCCTGCGGAGTG
+TAAAAGTCATCATCCAAGCAGGCACCCAGCGCGCTGTTGCAGTGACCGCCGACCACGAGG
+TTACTTCCACCAAGCTAGAGAAGGGGCACACTATTGCCAAATACAATCCCTTCAAGAAAT
+AGGCTACGTCTTTGAGATTGCACTCCACCCATCTTCCCAGATCACTATGACACTAAATAA
+TGATTTGCCTTGATTACTTATAATTAGTTCGCCTGTCTATCAAATTAGAAAAAACACGGG
+TAGAAGATTCTGGATCCCGGTTGGTGCCTTCAAGGTGCAAGATGGGTTCCAAGTCTTCTA
+CCAGGTTCCCAGTACCTCTAATGCTGACCGTCCGAGTCATGCTGGCACTGAGTTGCGTCT
+GTCCGGCCAGCGCCCTTGATGGCAGGCCTCTTGCGGCTGCAGGGATTGTGGTAACAGGAG
+ACAAAGCGGTCAACATATACACATCATCTCAGACAGGGTCAATCATAATCAAGTTACTCC
+CGAATATGCCCAAGGATAAAGAGGCGTGTGCAAAAGCACCGTTGGAGGCATACAACAGGA
+CATTGACTACTTTGCTCACCCCTCTTGGTGATTCTATCCGTAGGATACAAGAGTCTGTGA
+CCACGTCCGGAGGAAGAAAACAGGGACGCCTTATAGGAGCCATTATCGGTGGTGTAGCTC
+TCGGGGTCGCGACCGCTGCACAAATAACAGCAGCCTCGGCTTTGATACAAGCCAATCAAA
+ATGCTGCCAACATCCTCCGGCTCAAAGAGAGCATTGCTGCAACCAATGAGGCTGTACACG
+AGGTCACTGACGGATTATCACAACTAGCAGTGGCAGTTGGGAAGATGCAGCAATTTGTTA
+ATGACCAGTTTAATAAGACAGCCCAGGAATTGGACTGTATAAAAATTGCACAGCAAGTTG
+GTGTAGAACTCAACCTGTACTTAACTGAATTGACTACAGTATTTGGGCCGCAAATCACTT
+CCCCTGCCTTAACTCAGCTGACTATCCAGGCGCTTTACAATCTAGCTGGTGGGAATATGG
+ATTACTTGTTAACTAAGTTAGGTGTGGGGAATAACCAACTCAGCTCATTAATTAGTAGTG
+GCCTGATCACCGGCAACCCTATTCTGTATGACTCACAGACTCAACTCTTGGGTATACAGG
+TAATCCTACCCTCAGTCGGGAATCTAAATAATATGCGTGCCACCTATCTGGAAACCTTGT
+CTGTAAGTACAACTAAAGGATTTGCCTCAGCTCTTGTCCCAAAGGTAGTGACACAGGTCG
+GTTCTGTGATAGAAGAGCTTGACACCTCATACTGTATAGAGACCGATTTGGATCTATATT
+GTACAAGAATAGTGACATTCCCTATGTCTCCTGGTATTTATTCCTGTTTGAGTGGNNNNN
+>c2
+NNNNNGTTGTGATATGCTATGTTCCAAAGTCACAGAGACTGAAGAAGAGGATTATAACTC
+AGCTGCCCCCACGTCGATGGTACACGGGAGGTTAGGGTTCGACGGCCAATATCATGAGAA
+GGACCTAGACGTCACAACACTATTCGAGGACTGGGTGGCAAACTACCCAGGAGTAGGGGG
+CGGGTCTTTTATTGACAATCGCGTATGGTTCCCAGTTTACGGAGGGCTAAGACCCAATTC
+GCCCAGTGACACCGCACAAGAAGGGAAATATGTAATATACAAGCGATATAATGACACATG
+TCCAGACGAGCAAGATTATCAGATTCGAATGGCTAAGTCTTCATATAAGCCTGGGCGGTT
+TGGTGGGAAACGCGTACAGCAAGCCATCTTATCTATCAAAGTGTCAACATCCTTGAGTGA
+GGACCCAGTGCTGACTGTACCGCCCAACACAGTCACACTCATGGGGGCTGAAGGCAGAGT
+TCTCACAGTAGGGACATCTCATTTCTTTTATCAACGAGGGTCATCGTACTTCTCCCCTGC
+CCTACTATACCCCATGATAGTCAGTAACAAAACAGCCACTCTTCATAGTCCTTATATATT
+CAATGCTTTTACTCGACCAGGTAGTATCCCTTGCCAGGCTTCAGCAAAATGCCCTAACTC
+ATGTGTTACCGGAGTCTATACTAATCCATATCCCTTGGTCTTCTATAGGAACCACACCTT
+GCGAGGGGTATTCGGGACGATGCTTGATGATGTACAAGCAAGACTCAACCCGGTATCTGC
+AGTATTTGACGGCATATCTCGCAGTCGCATAACCCGGGTGAGTTCAGGCAGCACCAAGGC
+AGCATACACAACATCGACATGTTTTAAAGTTGTAAAGGCCAATAAAACCTATTGTCTCAG
+CATTGCAGAAATATCCAATACCCTATTCGGGGAATTCAGAATCGTCCCTTTACTAGTTGA
+GATTCTCAAGGATGATGGGGTTAGAGAAGCCAGGTCTAGCCGGTAGAGTCAACTGTGAGA
+AGGTTGGAAAGATGACATTGTATCACCTATCTTTTGCGACGCCAAGAATCAAACTGAATA
+CCGGCACAAGCTCGAGTCCTATGCTGCCAGTTGGCCATAATCAGTTAGTACCAATGTGAT
+TAGATTAAGTCTTGTCTGTGGTCACTTGATTAAGAAAAAACGTGGGTGGTAGCGGGACAC
+AAGGCAAAGCAACTCAAGGAGGATAGCACGGGTAGGACATGGCGAGCTCCGGTCCCGAAA
+GGGCAGAGCATCAGATTATCCTACCAGAGTCACACTTATCTTCACCATTAGTCAAGCACA
+AACTACTCTATTACTGGAAATTAACTGGGTTACCACTCCCTGATGAGTGTGACTTCGACC
+ACCTCATTCTCAGCCGACAATGGAAAAAAATACTTGAATCGGCCTCCCCTGACACTGAGA
+GAATGATAAAACTTGGAAGGGCAGTGCACCAGACTCTCAACCACAATTCCAGGATAACCG
+GAGTACTCCATCCCAGGTGTTTAGAAGAACTGGCTAGTATTGAGATTCCTGACTCAACCA
+ACAAGTTTCGGAAGATAGAGAAGAAAATCCAAATTCACAACACAAGGTATGGAGAACTGT
+TCACAAGACTGTGCACGCATGTAGAGAAGAAATTGTTGGGATCATCTTGGTCTAATAACG
+TCCCCCGGTCAGAAGAGTTCAACAGCATCCGTACGGATCCGGCATTCTGGTTTCACTCGA
+AATGGTCCACAACTAAGTTTGCATGGCTCCATCTAAAACAGATTCAAAGGCATCTGATTG
+TAGCAGCAAGAACAAGGTCCGCAGCCAACAAATTGGTGACACTGACTCATAAGGTAGGCC
+AAGTCTTTGTTACTCCTGAGCTTGTCATTGTGACACATACAGATGAGAACAAGTTCACGT
+GTCTTACACAAGAACTTGTGTTGATGTATGCAGATATGATGGAGGGCAGAGATATGGTCA
+ACATAATATCATCCACGGCGGCACATCTCAGGATCCTATCAGAGAAAATTGATGACATTC
+TGCGGTTAGTAGATGCCCTGGCAAAAGATCTGGGCAATCAAGTCTATGATGTTGTGGCAC
+TCATGGAGGGATTTGCATACGGCGCCGTCCAGCTGCTTGAGCCATCAGGTACGTTTGCAG
+GGGATTTCTTTGCATTCAATCTGCAAGAGCTCAAAGACACTTTGATCGGCCTCCTTCTTA
+AGGACATAGCAGAATCTGTAACTCACACAATAGCCACCATATTCTCTGGCTTAGAACAAA
+ATCAAGCGGCTGAGATGCTGTGTCTGTTGCGTTTATGGGGCCACCCATTACTTGAGTCCC
+GTGTTGCGGCGAAAGCAGTAAGGAACCAAATGTGTGCACCAAAAATGGTAGACTTTGATA
+TGATCCTCCAGGTATTGTCATTCTTTAAAGGAACAATCATCAACGGATACCGAAAGAAGA
+ATGCAGGTGTTTGGCCACGTGTCAAAGTAGATACGATATATGGGAAGGTTATTGGGCAGT
+TACATGCTGATTCAGCGGAAATTTCACACGATATCATGTTGAGAGAGTACAAGAGTTTAT
+CTGCGCTTGAATTCGAGCCCTGTATAGAATACGACCCTATCACCAATCTGAGTATGTTTC
+TAAAAGATAAGGCGATCGCACACCCGAAAGACAACTGGCTCGCCTCATTTAGGCGAAACC
+TTCTCTCTGAGGACCAGAAGAAACATGTAAAAGAGGCAACATCTACTAACCGTCTCTTGA
+TAGAATTCTTAGAGTCAAATGATTTCGATCCATATAAGGAGATGGAATATCTAACGACCC
+TCGAGTACCTAAGGGATGACAATGTGGCAGTATCATACTCACTCAAGGAGAAGGAGGTGA
+AGGTCAATGGACGGATTTTTGCTAAGCTAACAAAGAAATTAAGGAACTGTCAGGTGATGG
+CGGAAGGGATCTTAGCTGACCAGATTGCACCTTTCTTTCAGGGGAATGGGGTCATTCAGG
+ATAGCATATCTTTAACCAAGAGTATGCTAGCGATGAGTCAACTGTCATTCAACAGCAATA
+AGAAACGTATCACTGACTGCAAAGAAAGAGTAGCCTCAACCCGCAATCACGATCAAAAAA
+GCAAGAATCGTCGGAGAGTTGCCACTTTTATAACGACTGACCTGCAGAAGTACTGTCTTA
+ATTGGAGATATCAGACAATCAAACTGTTCGCTCATGCCGTTAATCAGCTGATGGGCTTAC
+CTCATTTCTTCGAATGGATTCATCTAAGGCTAATGGATACTACGATGTTTGTAGGTGACC
+CTTTCAATCCCCCAAGTGACCCAACTGACTGTGATCTCTCAAGAGTTTCAAATGACGACA
+TATATATTGTCAGTGCTAGGGGGGGTATTGAGGGATTATGTCAGAAGCTATGGACAATGA
+TCTCAATTGCTGCAATCCAACTTGCTGCAGCGAGATCACATTGCCGCGTAGCCTGTATGG
+TACAAGGTGACAATCAAGTAATAGCTGTAACGAGAGAAGTAAGATCAGATGACTCCCCGG
+AAATGGTGTTAACACAATTGCATCAAGCAAGTGATAATTTCTTCAAGGAATTGATTCATG
+TTAATCATTTGATTGGCCATAATTTGAAGGATCGTGAAACAATCAGATCAGACACATTCT
+TCATATACAGCAAACGAATATTCAAGGATGGAGCAATACTCAGTCAGGTCCTTAAAAATT
+CATCTAAATTAGTGCTAATATCAGGCGACCTTAGTGAAAACACCGTAATGTCCTGTGCCA
+ACATTGCATCTACTATCGCACGGCTGTGTGAGAACGGGCTTCCAAAGGATTTCTGTTATT
+ACTTAAACTACTTAATGAGTTGCGTGCAGACATACTTTGATTCTGAGTTTTCCATCACTA
+ATAGCTCGCACCTCGGTTCTAACCAGTCTTGGATTGAAGACATCTCTTTTGTGCACTCAT
+ACGTCCTAACCCCTGCCCAGCTAGGAGGACTGAGCAACCTCCAATATTCAAGGCTCTACA
+CAAGGAACATCGGTGACCCGGGAACTACTGCTTTTGCAGAGATCAAACGATTAGAAGCAG
+TGGGGTTACTAAGTCCTAGTATTATGACTAACATCTTGACTAGGCCGCCTGGAAATGGAG
+ACTGGGCCAGTCTGTGTAACGACCCTTACTCTTTCAATTTTGAGACTGTCGCGAGTCCAA
+ACATTGTCCTTAAGAAACATACACAAAGAGTCCTATTTGAATCTTGCTCAAATCCCTTAT
+TATCTGGAGTGCATACAGAGGATAATGAGGCAGAAGAGAAGGCGTTGGCTGAATTTTTAC
+TCAATCAAGAAATAATTCATCCACGTGTTGCGCATGCTATCATGGAAGCAAGCTCTGTAG
+GTAGGAGGAAGCAGATTCAAGGGCTTGTTGACACAACAAACACTGTAATCAAGATTGCAT
+TGACTAGGAGGCCACTTGGCATCAAGAGGCTGATGCGGATAGTTAACTATTCGAGCATGC
+ATGCAATGCTGTTTAGAGACGATGTTTTCTCATCTAACAGGTCTAACCACCCCTTAGTCT
+CCTCTGATATGTGTTCTCTGACGCTAGCAGACTATGCACGGAATAGAAGCTGGTCACCTT
+TGACAGGGGGTAGAAAGATACTGGGTGTATCTAATCCCGATACTATAGAACTTGTAGAGG
+GTGAGATCCTTAGCGTAAGCGGAGGATGCACAAGGTGTGACAGCGGAGATGAACAATTCA
+CTTGGTTCCATCTCCCGAGCAATATAGAACTGACCGATGACACCAGCAAGAATCCTCCGA
+TGAGAGTGCCATACCTCGGGTCAAAGACTCAAGAGAGGAGAGCCGCCTCGCTTGCGAAAA
+TAGCTCATATGTCACCACATGTGAAAGCTGCTCTAAGGGCATCATCCGTGTTGATCTGGG
+CTTATGGAGACAACGAAGTAAACTGGACTGCTGCTCTTAAGATTGCAAGATCTCGGTGCA
+ATATAAACTCAGAGTACCTTCGGCTATTGTCCCCCTTACCTACAGCTGGGAATCTCCAAC
+ACAGACTGGATGACGGCATAACTCAGATGACATTCACCCCTGCATCTCTCTACAGAGTGT
+CACCTTATATTCACATATCCAATGATTCTCAAAGGTTATTCACGGAAGAAGGAGTCAAAG
+AAGGGAATGTGGTTTATCCGCAAATCATGCTCTTGGGTTTATCTCTAATTGAGTCACTCT
+TCCCGATGACGACAACCAGGACATATGATGAGATTACATTGCACCTCCACAGTAAATTTA
+GCTGCTGTATCAGGGAAGCACCTGTTGCAGTCCCTTTCGAGTTATTCGGGATGGCACCAG
+AATTAAGGATAGTGACCTCAAATAAGTTTATGTATGATCCTAGTCCTGTAGCGGAGGGTG
+ACTTTGCGAGACTTGACTTAGCTATCTTTAAGAGTTATGAGCTCAATCTAGAATCATATC
+CCACAATAGAGCTAATGAACATTCTTTCAATATCCAGCGGAAAATTAATCGGCCAGTCTG
+TGGTTTCTTATGATGAAGATACCTCTATAAAGAATGACGCCATAATAGTGTATGACAACA
+CCCGGAATTGGATCAGCGAAGCTCAGAATTCAGATGTGGTCCGTCTATTTGAGTATGCGG
+CACTTGAAGTGCTTCTCGACTGTTCTTATCAGCTCTACTATCTGAGAGTAAGGGGCCTAA
+ACAATATCGTGTTGTATATGAGTGACTTATATAAGAATATGCCAGGAATTCTACTTTCCA
+ACATTGCAGCCACAATATCTCATCCCATCATTCATTCAAGATTACATGCAGTAGGCCTTG
+TTAATCATGACGGGTCACACCAACTTGCAGACACAGATTTCATCGAAATGTCTGCAAAAC
+TGTTAGTTTCCTGCACCCGACGCGTGGTCTCAAGTTTATATGCAGGGAATAAGTATGATC
+TGCTGTTTCCATCTGTCTTAGATGACAACCTGAGTGAAAAGATGCTTCAGCTGATATCTC
+GGTTATGCTGCCTGTATACGGTGCTCTTTGCTACAACAAGAGAGATCCCGNNNNNNNNNN