P B C N,NR.60*CS,CZ*
LATT  1
SYMM  0.5-X,0.5-Y,0.5+Z
SYMM  0.5+X,0.5-Y,-Z
SYMM  -X,Y,0.5-Z
    0 .5 / 0 .5 / 0 .5
    P B C N,NR.60*CS,CZ*