b-u bbb bbd bbi bbt bbu bdb bdd bdi bdt bdu bi- bib bid bii bit biu btb btd bti btt btu bub bud bui but buu dbb dbd dbi dbt dbu ddb ddd ddi ddt ddu di- dib did dii dit diu dtb dtd dti dtt dtu dub dud dui dut i-d ibb ibd ibi ibt ibu idb idd idi idt idu iib iid iii iit iiu itb itd iti itt itu iu- iub iud iui iut tbb tbd tbi tbt tbu tdb tdd tdi tdt tdu tib tid tii tit tiu ttb ttd tti ttt ttu tub tud tui tut tuu ubb ubi ubt ubu udb udd udi udt udu uib uid uii uit uiu utb utd uti utt utu uut uuu

bbbb bbdd bdii bibb bibi bidi bidu bitd bitt bitu btdt bttb bubb bubi bubu budb budd budi budu buid buit buiu but- buti butt dbit dbtt dddd ddub dibb didi didu diii diti ditt dub- dubb dubu dudd dudu duid duit duut ibid ibtb idid idub iiii iiit iitt iuiu tbit tddb tibi tibu tidd tiit tiiu titi titt titu ttbb tttt tubb tubu tudi tudu tuit tuiu tuti tutt tutu ubbi ubid ubii ubit ubud uddi udid utid utti uttu uuuu

biddu bitit bitti buddu butid butit butut ddddd diddu didit ditib dittd ditti dubbi dubi i-bid iiiii iitti itbit itdid ittti itu-d itu-t itutu tbtbt tbutt ti-ti tibbi tibbu titii titti ttttt tubi- tutti tuubi tuudi u-bit u-dub uitti uuuuu

bbbbbb bidbid bububu diii-d dubdub ididit tibbit tidbit titbit titibu tuiuti tuttut

bbbbbbb tibbitt tid-bit tit-bit tut-tut

bbbbbbbb i-ii-iii

bidi-bidi ddddddddd dub-i-dub

ubbi-dubbi

biddi-biddi

bbbbbbbbbbbbbbb