20  ENERGY = 1.8  2988_ASO3
    1 A       0    2    0    1
    2 U       1    3   13    2
    3 A       2    4   12    3
    4 C       3    5   11    4
    5 U       4    6   10    5
    6 U       5    7    0    6
    7 A       6    8    0    7
    8 A       7    9    0    8
    9 C       8   10    0    9
   10 G       9   11    5   10
   11 G      10   12    4   11
   12 U      11   13    3   12
   13 A      12   14    2   13
   14 C      13   15    0   14
   15 U      14   16    0   15
   16 U      15   17    0   16
   17 A      16   18    0   17
   18 U      17   19    0   18
   19 U      18   20    0   19
   20 U      19    0    0   20