SEQ: AGCTTTTCATTCTGACTGCAACGGGCAATACCTGCCGTGAGTAAATNNN SEQ_LEN: 50 SEQ_NAME: test1 --- SEQ: TGGGCGTTNNNNGCAGGTAAATAGGCTTCTGTNNGACGTACTATAACGT SEQ_LEN: 50 SEQ_NAME: test2 --- SEQ: NNNATAGTACTACAGTAACGAAAGTCNNGGATTTTTCTGAAGAGCTTTA SEQ_LEN: 50 SEQ_NAME: test3 ---