bp_test/in/substitute_vals.in

   1 SEQ_NAME: test1
   2 SEQ: AGNCTTTTCATTCTGACTGCAACGGGCAATACCTGCCGTGAGTAAATNNN
   3 SEQ_LEN: 50
   4 ---
   5 SEQ_NAME: test2
   6 SEQ: TGGGCGTTNNNNNGCAGGTAAATAGGCTTCTGTNNGACGTACTATAACGT
   7 SEQ_LEN: 50
   8 ---
   9 SEQ_NAME: test3
  10 SEQ: NNNNATAGTACTACAGTAACGAAAGTCNNGGATTTTTCTGAAGAGCTTTA
  11 SEQ_LEN: 50
  12 ---