7 7  4 ## 4 LS(7), one of each parity
badcfge
abcdefg
cdabgef
defgabc
ecgfbad
fgbecda
gfeadcb

badcgef
abcdefg
cdabfge
efgabcd
febgadc
gcefdab
dgfecba

bacdefg
abdecgf
dcafgbe
cdbgfea
fegabcd
gfebadc
egfcdab

bacdefg
abdcfge
cdbagef
defgbac
ecgfabd
fgaecdb
gfebdca