obada[8],
baca[7], caba[7], bada[7], baco[7], coba[7], obca[7], doba[7], dada[6], coda[6], doda[6], odda[6],
cab[6], bad[6], dba[6], cob[6], bod[6], abo[5], boa[5], oba[5], cod[5], doc[5], dao[4], oda[4],
ba[4], bo[4], ad[3], da[3], co[3], do[3], od[3], aa[2],
