"Previous line
specifies next",Legend,A - Char,_ - Space
T - Tab,N - Newline,Q - Quote,C - Comma
AAA,AAA_AAA,_A_,AAA
abc,abc def, a ,abc
ATAT,T,TT,AAA
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AAA,AAA,AAA,AAA
abc,abc,abc,abc
ANA,AANNAA,AA_AANAA_AA,AAA
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Q,QQ,AQA,AQAAQA
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C,CC,ACA,ACAACA
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CCC,ACCA,CACAC,CCACCACC
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A,AA,AAA,AAAA
a,ab,abc,abcd