P 61,NR.169*CB* 
LATT    -1
SYMM    -Y,   X-Y,   .33333+Z
SYMM   Y-X,    -X,   .66667+Z
SYMM    -X,    -Y,   .5+Z
SYMM     Y,   Y-X,   .83333+Z
SYMM   X-Y,     X,   .16667+Z  
    0 1 / 0 1 / 0 .1666
    P 61,NR.169*CB*