>original_file
GCGTAGAGATGTGGAGGAACACCAGTGGCGAAGGCGACTC
TCTGGTCTGTAACTGACGCTGAGGCGCGAAAGCGTGGGGAGCAAACAGGA
TTAGATACCCTGGTAGTCCACGCCGTAAACGATGAGTGCTAGGTGTTAGG
GGTTTCGATGCGTTAACACATTAAGCACTCCGCCTGG
GGAGTACGGCCGCAAGGCTGAAACTCAAAGGAATTGACGGGGACCCGCAC
AAGCAGTGGAGCATGTCACCCAAGAGATTGGGCTTCCCCTTCGGGGG
CACCCAAGAGATTGGGCTTCCCCTTCGGGGGCAAAGTGACAGGTGGTGCA
TGGTTGTCGTCAGCTCGTG
TCGTGAGATGTTGGGTTAAGTCCCGCAACGA
GCGCAACCCTTGATCTTAGTTGCCAGCATTGAGTTGGGCACTCTAAGGTG
ACTGC
GGAGGAAGGTGGGGATGACGTCAAATCATCATG
CCCCTTATGACCTGGGCTACACACGTGCTACAATGGATGGTACAAAGGGC
AGCGAAACCGCGAGGTGAAGCCAATCCCATAAAGCCATTCTCAGTTCGGA
TTGCAGGCTGCAATGCATGAAGCCGCAAAGTGACAGGTGGTGCA
TGGTTGTCGTCAGCTCGTGTCGTGAGATGTTGGGTTAAGTCCCGCACCCAAGAGATTGGGCTTCCCCTTCGGGGGCAAAGTGACAGGTGGTGCACAACGA
GCGCAACCCTTGATCTTAGTTGCCAGCATTRAGTTGGGCACTCTAAGGTG
ACTGCCGGTGACAA
ACCGGAGGAAGGTGGGGATGACGTCAAATCATCATG
CCCCTTATGACCTGGGCTACACACGTGCTACAATGGATGGTACAAAGGGC
AGCGAAACCGCGAGGTGAAGCCAATCCCATAAAGCCATTCTCAGTTCGGA
TTGCAGGCTGCAACTCGCCTGCATGAAGCCG

>I_want_this_format

GCGTAGAGATGTGGAGGAACACCAGTGGCGAAGGCGACTCTCTGGTCTGTAACTGACGCTGAGGCGCGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCACGCCGTAAACGATGAGTGCTAGGTGTTAGGGGTTTCGATGCCCGTAGTGCCGAAGTTAACACATTAAGCACTCCGCCTGGGGAGTACGGCCGCAAGGCTGAAACTCAAAGGAATTGACGGGGACCCGCACAAGCAGTGGAGCATGTCACCCAAGAGATTGGGCTTCCCCTTCGGGGGCAAAGTGACAGGTGGTGCATGGTTGTCGTCAGCTCGTGTCGTGAGATGTTGGGTTAAGTCCCGCAACGAGCGCAACCCTTGATCTTAGTTGCCAGCATTRAGTTGGGCACTCTAAGGTGACTGCCGGTGACAAACCGGAGGAAGGTGGGGATGACGTCAAATCATCATGCCCCTTATGACCTGGGCTACACACGTGCTACAATGGATGGTACAAAGGGCAGCGAAACCGCGAGGTGAAGCCAATCCCATAAAGCCATTCTCAGTTCGGATTGCAGGCTGCAACTCGCCTGCATGAAGCCG