20  ENERGY = -2.1  1
    1 T       0    2    0    1
    2 C       1    3    0    2
    3 C       2    4    0    3
    4 A       3    5    0    4
    5 C       4    6   20    5
    6 C       5    7   19    6
    7 C       6    8   18    7
    8 A       7    9    0    8
    9 G       8   10    0    9
   10 G       9   11    0   10
   11 G      10   12    0   11
   12 A      11   13    0   12
   13 G      12   14    0   13
   14 A      13   15    0   14
   15 G      14   16    0   15
   16 A      15   17    0   16
   17 A      16   18    0   17
   18 G      17   19    7   18
   19 G      18   20    6   19
   20 G      19    0    5   20