k6
CuPb PbCu ____ AuSn ____ ____ TiFe FeTi HgAg ____ SnAu ____ 
____ TiFe FeTi HgAg ____ SnAu ____ CuPb PbCu ____ AuSn ____ 
SnAu ____ CuPb PbCu ____ AuSn ____ ____ TiFe FeTi HgAg ____ 
AuSn ____ ____ TiFe FeTi HgAg ____ SnAu ____ CuPb PbCu ____