Load stirred-reactor description macro
  Load the declaration and initial-setting macro
  Set the micro-mixing and reaction-rate constants 
CONMIX=10.0; CONREA=10.0; RATEXP=5.0
NFLR=25   ! set the number of reactedness subdivisions
mesgm(Insert desired value of NFLR, currently :NFLR:
  Make consequential settings
FLOWA=0.5  ! inflow rate of A stream
FLOWB=0.5  ! inflow rate of B stream
RA=0.0     ! reactedness of A stream
RB=1.0     ! reactedness of B stream
  Make further consequential settings
ITABL=0 ! to suppress printing of residuals and spot values