>seq001  Test DNA sequence for FASTA conversion
atcgatcgatcgatcgatcgatcgatcgatcgatcgatcg
>seq002  Another test sequence with different nucleotide content
gctagctagctagctagctagctagctagctagctagct
>seq003  Third sequence for testing output format
ttaaccggttaaccggttaaccggttaaccggttaaccg