P 6 2 2,NR.177*CB*
LATT    -1
SYMM    -Y,    X-Y,    Z
SYMM     Y-X, -X,      Z
SYMM    -X,   -Y,      Z
SYMM     Y,    Y-X,    Z
SYMM     X-Y,  X,      Z
SYMM     Y,    X,     -Z
SYMM    -X,    Y-X,   -Z
SYMM     X-Y, -Y,     -Z
SYMM    -Y,   -X,     -Z
SYMM     X,    X-Y,   -Z
SYMM     Y-X,  Y,     -Z
    0 .6666 / 0 .5 / 0 .5
    SONDER: X .LE. (1+Y)/2
    SONDER: Y .LE. MIN. (1-X,X)
    P 6 2 2,NR.177*CB*