6 6  4 ## 4 LS(6), one of each parity
abcdef
badcfe
cdefab
dcfeba
efabcd
febadc

bacdef
abdcfe
cdefba
defbac
efbacd
fcaedb

bacdef
abdefc
cdefba
dcfbae
efbacd
feacdb

bacdef
abfcde
feabcd
edbafc
dcefab
cfdeba