bbbb bbin bblb bibb bibi bibl biin bili bill bilt bin- bini binn bint bitt bitx bixi blbt blin blit blix blni bnib bnin bttb ibtb ibtl iiii iiit iitt ilbx ilin ilit ill- illi illt ilni ilxx init inni inti intl intn itil itin itll ixil ixxi libx liii liin lilb lili lill lilt linn lint linx litb liti litl litt lixi lixt llll ltbl ltib ltnt lxii lxxi lxxx n-ii nbti nibi niit nili nill nilt nini ninl nitb niti nixi nixt nnit nnnn nntn tbil tbit tibi tiit till tiln tilt tini tinn tint titi titt tixt tlli tltx ttbb tttt txii xbin xiii xil- xili xill xixi xlib xlii xlix xlnt xxii xxix xxxi xxxx