&FORCE_EVAL
  METHOD FIST
  &MM
    &FORCEFIELD
      &CHARGE
        ATOM H
        CHARGE 0.0
      &END CHARGE
      &CHARGE
        ATOM O
        CHARGE 0.0
      &END CHARGE
      &BOND
        ATOMS H O
        K [au_e*au_l^-2] 0
        R0 [au_l] 1.81111424
      &END BOND
      &BEND
        KIND MM3
        ATOMS H O H
        K [au_e*rad^-2] 0.4
        THETA0 [rad] 1.82299609
        R012 [au_l] 1.81111424
        R032 [au_l] 1.81111424
        KBS12 [au_e*au_l^-1*rad^-1] 0.3
        KBS32 [au_e*au_l^-1*rad^-1] 0.3      
      &END BEND
      &NONBONDED
        &LENNARD-JONES
            ATOMS O H
            SIGMA [au_l] 1
            EPSILON [au_e] 0
        &END LENNARD-JONES
        &LENNARD-JONES
            ATOMS H H
            SIGMA [au_l] 1
            EPSILON [au_e] 0
        &END LENNARD-JONES
        &LENNARD-JONES
            ATOMS O O
            SIGMA [au_l] 1
            EPSILON [au_e] 0
        &END LENNARD-JONES     
      &END NONBONDED
    &END FORCEFIELD
    &POISSON
      PERIODIC none
      &EWALD
        EWALD_TYPE none
      &END EWALD
    &END POISSON
  &END MM
  &SUBSYS
    &CELL
      ABC [angstrom] 10 10 10
    &END CELL
    &COORD
      O      0.000000     0.000000     0.000000
      H      0.807541     0.587080     0.000000
      H     -0.807541     0.587080     0.000000
    &END COORD
    &TOPOLOGY
     &GENERATE
       CREATE_MOLECULES
     &END GENERATE
    &END TOPOLOGY
  &END SUBSYS
&END FORCE_EVAL
&GLOBAL
  PROJECT water_mm3
  PREFERRED_FFT_LIBRARY FFTW3
  RUN_TYPE ENERGY
  PRINT_LEVEL LOW
&END GLOBAL
