20  ENERGY = 1.8  1
    1 A       0    2    0    1
    2 T       1    3   19    2
    3 G       2    4   18    3
    4 G       3    5   17    4
    5 C       4    6    0    5
    6 G       5    7   16    6
    7 T       6    8   15    7
    8 A       7    9    0    8
    9 T       8   10    0    9
   10 C       9   11    0   10
   11 G      10   12    0   11
   12 T      11   13    0   12
   13 G      12   14    0   13
   14 A      13   15    0   14
   15 A      14   16    7   15
   16 C      15   17    6   16
   17 C      16   18    4   17
   18 C      17   19    3   18
   19 A      18   20    2   19
   20 A      19    0    0   20