P -3 C 1,NR.165*MJ*
LATT    1
SYMM    -Y, X-Y,     Z
SYMM   Y-X,  -X,     Z
SYMM    -Y,  -X, .5+Z
SYMM     X, X-Y, .5+Z
SYMM   Y-X,   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 C 1,NR.165*MJ*