P B C A,NR.61*CS* LATT 1 SYMM 0.5+X,0.5-Y, -Z SYMM -X,0.5+Y,0.5-Z SYMM 0.5-X, -Y,0.5+Z 8c X Y Z 4b 0 0 1/2 4a 0 0 0 0 .5 / 0 .5 / 0 .5 P B C A,NR.61*CS*