輸入FASTA格式的序列，長(zhǎng)度限定在500000以?xún)?nèi)。

>random_sequence_1000_bases gtttcaaactgtccaggtctaatggtgtgaagcgatactgtttgatgcctggttggtgca actggcggcaaaacggcttaaagctccagatgccacattagtgaggacctggtgtattac gttggattaccctgtgacagctcaggcacacaccaggattaggaaattagcatcgtaaga ctagtccgtacaaacaaaaacaaaaaatagaagtttcaagtggttcccgttgttggagcg cgtaagggatacgtaataataggtcaggtcagaaagaagcggcttggagccccatttata tctttaacatcgggagaatcatccgtcgaccttgtggcacggtttgccggcgcgaatagg gtggacgtagatattagacggagacggttgaagcttacctcgtagctgggaactctatgg agtggctaccctatggacttcctccggcagcgcaggtttcaaaatgagcaatcagcaatt cctaggatgaagccgcgagctaaaaacttcagcgcttccgcatgcgttactgtcctggag agttttaatcgggtgtctgtcacacacctcggatctcgcccactgcgtgagccttagata cgcagtgatgcaatggatgtaggtctctagcgaagccaagtctagtcgcgcctccgcgcg caagtctgcgataatgggcaagtgcctgcagtctaagtataactcgtcgccagatgcggc ataggattatgagcgtttcccctgcgcgttatggtacccggaccgggcccgcgacacacg gtgcacaggtagagctagttaggcgtaacgacgccagaattatgtttattatttacctgt gacgcaagctaacagtagtgccccggggtgctagtaagtaagcagagaactgggatgtag ccgtcaaaggtcttttgccgagatgactactacaaccgtatagacaaagcgtgcacatta catggggagtacctacttccagaacctgtgtcttcctagt

* 新序列為 個(gè)堿基.

* 新序列重疊區(qū)長(zhǎng)度為 個(gè)堿基.