20  ENERGY = 1.6  1
    1 C       0    2    0    1
    2 T       1    3    0    2
    3 T       2    4    0    3
    4 C       3    5    0    4
    5 A       4    6    0    5
    6 G       5    7   11    6
    7 C       6    8    0    7
    8 C       7    9    0    8
    9 C       8   10    0    9
   10 A       9   11    0   10
   11 C      10   12    6   11
   12 T      11   13    0   12
   13 C      12   14    0   13
   14 G      13   15    0   14
   15 A      14   16    0   15
   16 T      15   17    0   16
   17 C      16   18    0   17
   18 C      17   19    0   18
   19 A      18   20    0   19
   20 T      19    0    0   20