bomb[9], abba[8], baba[8], abbo[8], babo[8], boba[8], obab[8], pomb[8], amba[7], ambo[7], mapa[6], mapo[6], mopa[6],
bab[7], bob[7], amb[6], bam[6], bom[6], mob[6], abo[5], boa[5], oba[5], map[5], mop[5], maa[4], moa[4], oma[4],
ba[4], bo[4], ma[3], om[3], pa[3], op[3], po[3], aa[2],