P -3 1 C,NR.163*MJ*
LATT    1
SYMM    -Y,  X-Y,     Z
SYMM   Y-X,   -X,     Z
SYMM     Y,    X, .5+Z
SYMM    -X,  Y-X, .5+Z
SYMM   X-Y,   -Y, .5+Z
    0 .6666 / 0 .6666 / 0 .25
    SONDER: X .LE. (1+Y)/2
    SONDER: Y .LE. MIN. (1-X,(1+X)/2)
    P -3 1 C,NR.163*MJ*