P -4 3 N,NR.218*GC*
LATT -1
SYMM    Z,   X,   Y
SYMM    Y,   Z,   X
SYMM   -X,   Y,  -Z
SYMM   -Z,   X,  -Y
SYMM   -Y,   Z,  -X
SYMM    X,  -Y,  -Z
SYMM    Z,  -X,  -Y
SYMM    Y,  -Z,  -X 
SYMM   -X,  -Y,   Z  
SYMM   -Z,  -X,   Y
SYMM   -Y,  -Z,   X
SYMM .5+X,.5+Z,.5+Y
SYMM .5+Y,.5+X,.5+Z
SYMM .5+Z,.5+Y,.5+X
SYMM .5+X,.5-Z,.5-Y
SYMM .5+Y,.5-X,.5-Z
SYMM .5+Z,.5-Y,.5-X
SYMM .5-X,.5+Z,.5-Y
SYMM .5-Y,.5+X,.5-Z
SYMM .5-Z,.5+Y,.5-X
SYMM .5-X,.5-Z,.5+Y
SYMM .5-Y,.5-X,.5+Z
SYMM .5-Z,.5-Y,.5+X
    0 .5 / 0 .5 / 0 .5
    SONDER: Z .LE. MIN. (X,Y)
    P -4 3 N,NR.218*GC*