P 63 M C,NR.186*CB*  
LATT -1
SYMM   -Y,    X-Y,  Z
SYMM    Y-X, -X,    Z
SYMM   -X,   -Y,    .5+Z
SYMM    Y,    Y-X,  .5+Z
SYMM    X-Y,  X,    .5+Z
SYMM    Y,    X,    .5+Z
SYMM   -X,    Y-X,  .5+Z
SYMM    X-Y, -Y,    .5+Z
SYMM   -Y,   -X,    Z
SYMM    X,    X-Y,  Z
SYMM    Y-X,  Y,    Z
    0 .6666 / 0 .3333 / 0 1
    SONDER: X .LE. (1+Y)/2
    SONDER: Y .LE. X/2
    P 63 M C,NR.186*CB*