bbbb bbdd bddh bdii bhit bhut bhuu bibb bibi bidi bidu bihi bihu bitd bith bitt bitu btdt bttb bubb bubi bubu budb budd budi budu buhi buid buit buiu but- buti butt dbit dbtt dddd ddub dibb didi didu dihu diii dith diti ditt dthd dub- dubb dubh dubu dudd dudu duhu duid duit duut h-ii hbit hbtu hdtt hhhh hibi hibt hibu hidi hihi hiht hiit hiiu hiti hitt hubb hubi hudd hudi hudu huhi huhu huib huid huit huth huti hutt hutu huub ibid ibtb idid idub ihit ihub ihud iiht iiii iiit iitt iuiu tbit tddb thi- thtb thud tibi tibu tidd tiht tihu tiit tiiu tith titi titt titu ttbb tttt tubb tubu tudi tudu tuht tuhu tuit tuiu tuti tutt tutu ubbi ubid ubii ubit ubud uddi udid uh-d uhid uhti uhuh utid utti uttu uuuu