buś[11], muś[10], buc[8], bum[8], umb[8], cum[7], muc[7], bun[7], bru[7], bur[7], mun[6], cru[6], mru[6], mur[6], rum[6], nur[5], run[5], urn[5],
bu[6], mu[5], nu[4],
