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Outputting characters after a given string and reporting the characters in the row below --sed

 
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Old 01-13-2019
Outputting characters after a given string and reporting the characters in the row below --sed
I have this fastq file:
Code:
@M04961:22:000000000-B5VGJ:1:1101:9280:7106 1:N:0:86
GGGGGGGGGGGGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCA
+test-1
GGGGGGGGGGGGGGGGGCCGGGGGFF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;;8
@M04961:22:000000000-B5VGJ:1:1121:9280:7106 1:N:0:86
GGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCAGAAGCAGCAT
+test 2
GGGGGGGGGGGGGGGGGCCGGGGGF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;@8F
@M04961:22:000000000-B5VGJ:1:1151:9280:7106 1:N:0:86
GGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCAGAAGCAGCAT
+more tests
GGGGGGGGGGGGGGGGGCCGGGGGF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;+8F
@M04961:22:000000000-B5VGJ:1:1101:26069:7790 1:N:0:86
CAGAACGTGAAAAAGCGTCCTGCGTGTAGCGAACTGCGATGGGCATACTGTAACCATAAGGCCACGTATTTTGCAAGCTGGCATGAAAACATACATTTTT
+few more
CCCCCGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG+GGGG

And I am using this script to output the three characters after this sting GCATGAAAACATACA:
Code:
sed -n '/^@/{n;s/.*GCATGAAAACATACA\(...\).*/Codon:\t\1\tQuality Score: /p}'

This is my current output:
Code:
Codon:  AAC     Quality Score:
Codon:  AAC     Quality Score:
Codon:  AAC     Quality Score:
Codon:  TTT     Quality Score:

However, I would like to output the three characters in the same position two rows below from each sequence, something like this:
Code:
Codon:  AAC     Quality Score: ,ED
Codon:  AAC     Quality Score: GCC
Codon:  AAC     Quality Score: GCC
Codon:  TTT     Quality Score: +GG

Is there a way to accomplish this with sed?
operative system W10; shell cygwin
 
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