P N 3,NR.201*BE,GC*
LATT 1
SYMM    X, .5-Y, .5-Z 
SYMM .5-X,    Y, .5-Z
SYMM .5-X, .5-Y,    Z
SYMM    Z,    X,    Y
SYMM    Z, .5-X, .5-Y
SYMM .5-Z,    X, .5-Y
SYMM .5-Z, .5-X,    Y 
SYMM    Y,    Z,    X
SYMM    Y, .5-Z, .5-X
SYMM .5-Y,    Z, .5-X
SYMM .5-Y, .5-Z,    X
    -.25 .75 / -.25 .25 / -.25 .25
    SONDER: Y .LE. MIN. (X,.5-X)
    SONDER: Z .LE. Y
    P N 3,NR.201*BE,GC*