&MOTION
 &CONSTRAINT
    &COLLECTIVE
      COLVAR 1
      INTERMOLECULAR
      TARGET [angstrom] MYDIST
    &END COLLECTIVE
    &LAGRANGE_MULTIPLIERS
      COMMON_ITERATION_LEVELS 1
    &END
 &END CONSTRAINT
 &MD
   ENSEMBLE NVT
   TIMESTEP 0.5
   STEPS    100
   TEMPERATURE 1
   &THERMOSTAT
     &NOSE
       LENGTH 3
       YOSHIDA 3
       TIMECON 1000
       MTS 2
     &END NOSE
   &END
   &PRINT 
     &ENERGY OFF
     &END ENERGY
     &PROGRAM_RUN_INFO OFF
     &END PROGRAM_RUN_INFO
   &END PRINT
 &END MD
 &PRINT 
  &TRAJECTORY OFF
  &END
  &VELOCITIES OFF
  &END VELOCITIES
  &FORCES OFF
  &END FORCES
  &RESTART_HISTORY OFF
  &END RESTART_HISTORY 
  &RESTART OFF
  &END RESTART
 &END PRINT
&END MOTION