ambu[9], umba[9], mamb[8], umma[8], banu[8], buna[8], nuba[8], muna[7],
bum[8], umb[8], umm[7], bun[7], amb[6], bam[6], mmm[6], mun[6], mam[5], ban[5], man[4], nam[4],
bu[6], mu[5], ba[4], au[4], nu[4], ma[3], na[2],
