P 3 1 2,NR.149*MJ*
LATT    -1
SYMM    -Y,  X-Y,  Z
SYMM   Y-X,   -X,  Z
SYMM	-Y,   -X, -Z
SYMM	 X,  X-Y, -Z
SYMM   Y-X,    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 1 2,NR.149*MJ*