bum[8], umb[8], bym[7], buz[7], bzu[7], bim[6], muz[6], bzy[6], biz[5], izb[5], uzi[5], izm[4], zim[4],
bu[6], mu[5], by[5], bi[4], my[4], im[3], mi[3], ii[2],
