28 ENERGY =  1600.0    looprna                       
    1 a       0    2    2    1
    2 a       1    3    1    2
    3 a       2    4    0    3
    4 u       3    5    0    4
    5 a       4    6    0    5
    6 u       5    7    0    6
    7 g       6    8    0    7
    8 g       7    9    0    8
    9 a       8   10    0    9
   10 a       9   11    0   10
   11 u      10   12    0   11
   12 u      11   13    0   12
   13 a      12   14    0   13
   14 g      13   15    0   14
   15 a      14   16    0   15
   16 g      15   17    0   16
   17 u      16   18    0   17
   18 a      17   19    0   18
   19 u      18   20    0   19
   20 u      19   21    0   20
   21 c      20   22    0   21
   22 c      21   23    0   22
   23 a      22   24    0   23
   24 u      23   25    0   24
   25 a      24   26    0   25
   26 u      25   27    0   26
   27 u      26   28    0   27
   28 u      27    0    0   28