!       Name GridNumber   Jmin  Jmax  Kmin  Kmax  Lmin  Lmax
!*********** *********** ***** ***** ***** ***** ***** *****
        wall 1               1    -1     1    -1     1     1
         far 1               1    -1     1    -1    -1    -1
        symm 1               1    -1     1     1     1    -1
        symm 1               1    -1    -1    -1     1    -1
         far 2               1     1     1    -1     1    -1
         far 2               1    -1     1    -1    -1    -1
        symm 2               1    -1     1     1     1    -1
        symm 2               1    -1    -1    -1     1    -1
        wall 3               1    -1     1    -1     1     1
         far 3               1    -1     1    -1    -1    -1
        symm 3               1    -1     1     1     1    -1
        symm 3               1    -1    -1    -1     1    -1
         far 4              -1    -1     1    -1     1    -1
         far 4               1    -1     1    -1    -1    -1
        symm 4               1    -1     1     1     1    -1
        symm 4               1    -1    -1    -1     1    -1