P 3 2 1,NR.150*MJ*
LATT    -1
SYMM    -Y, X-Y,   Z
SYMM   Y-X,  -X,   Z
SYMM     Y,   X,  -Z
SYMM    -X, Y-X,  -Z
SYMM   X-Y,  -Y,  -Z
    0 .6666 / 0 .6666 / 0 .5
    SONDER: X .LE. (1+Y)/2
    SONDER: Y .LE. MIN. (1-X,(1+X)/2)
    P 3 2 1,NR.150*MJ*