>id1 sequence with highest 'a' count CATGCTACGGTGCTAAAAGCATTACGCCCTATAGTGATTTTCGAGACATACTGTGTTT TTAAATATAGTATTGCC >id2 description of id2 ATGTGTGTCCGTTGTGTAA AGTGTGTCcccgtgttATg gtagatttttga >id3 description of id3 ccccagtggggagtagggc AAAcgtatAA