baca[7], caba[7], bace[7], bece[7], abak[7], baka[7], beka[7], kabe[7], kaca[6], kace[6],
cab[6], bak[6], bek[6], bee[5], kac[5], cek[5],
ba[4], be[4], ce[3], ka[3], aa[2], ee[2],
