buc[8], bud[8], bum[8], umb[8], cud[7], cum[7], muc[7], dum[7], mud[7], bus[7], buz[7], bzu[7], mus[6], sum[6], dwu[6], ucz[6], uzd[6], muz[6], suw[5], szu[5], zwu[5],
bu[6], ud[5], mu[5], su[4], wu[4],