P0          A          C          G          T
01    -26.617    -34.972    -18.172    -21.897
02     -8.758    -32.935    -28.092    -31.873
03    -21.159    -25.648    -51.392     -3.459
04     -4.796    -70.423    -21.647    -10.683
05     17.672   -100.933      5.933     -5.066
06    -10.958    -29.979    -51.787     -8.933
07    -32.446    -27.684    -22.288    -19.239
08    -17.245    -39.451    -14.675    -36.177
09    -21.486    -38.410    -26.398    -15.363
10    -29.949    -26.457    -29.672    -21.470
# interaction energy is the sum of respective
# na-dependent contributions from positions