A      C      G      T
    68   -313    -13     82 
   217  -1155  -1155   -164 
  -264    119  -1155     53 
    94  -1155    104  -1155 
  -264    119      4  -1155 
 -1155    112   -155     36 
  -106    104    -55   -106 
    94     96  -1155   -264