Next line is problem title     << 1D STRESS ANALYSIS USING BAR ELEMENT >>
EXAMPLE 3.3
NN NE NM NDIM NEN NDN
 3  2  1   1   2   1
ND NL  NMPC
 1  3   0
Node#   X-Coordinate
 1      0
 2     12
 3     24
Elem#  N1  N2  Mat#  Area TempRise 
 1     1   2    1    5.25   0
 2     2   3    1    3.75   0
DOF#  Displacement
 1     0
DOF#  Load
 1    8.9334
 2  115.3144
 3    6.3810
MAT#  E   Alpha
 1   30E6  0
B1  i  B2 j  B3  (Multi-point constr. B1*Qi+B2*Qj=B3)