-ic b-u bbb bbc bbd bbi bbu bcb bcc bcd bci bcu bdb bdc bdd bdi bdu bi- bib bic bid bii biu bub buc bud bui buu c-- cbb cbc cbd cbi cbu ccb ccc ccd cci ccu cdb cdc cdd cdi cdu ci- cib cic cid cii ciu cub cuc cud cui cuu dbb dbc dbd dbi dbu dcb dcc dcd dci dcu ddb ddc ddd ddi ddu di- dib dic did dii diu dub duc dud dui i-d ibb ibc ibd ibi ibu icb icc icd ici icu idb idc idd idi idu iib iic iid iii iiu iu- iub iuc iud iui ubb ubc ubi ubu ucb ucc ucd uci ucu udb udc udd udi udu uib uic uid uii uiu uuc uuu

bbbb bbci bbdd bcbc bccc bcci bcuc bdbc bddc bdii bibb bibi bicc bici bidi bidu bubb bubi bubu bucc buci bucu budb budd budi budu buic buid buiu c-cd cbbc cbcc cbcu cbdb cbdc cbdi cbid ccbc cccb cccc ccci cccu ccdc ccdi ccic ccid ccii ccuc cddb cdic cdii cibc cibi cicc cici cicu cidc cidi ciid ciii ciuc cub- cubb cubi cucc cuci cudi cui- dbcc dcbc dccb dccc dcci dccu dcdb dcii dddd ddub dibb dici didi didu diii dub- dubb dubc dubu dudd dudu duid ibid icbc icbd iccb iccc icci iccu icdc icdd icub idic idid idub iicd iiii iiuc iucc iuiu ubbi ubic ubid ubii ubud ucbc ucci ucdc ucdd udbc uddi udic udid uuuu

bibic biddu bucci bucic buddu buici ccccc cccii cciii cdiii cubi- cubic cubub cucui dccic ddc-i ddddd diddu dubbi dubi dubuc ducic duduc i-bid icici iiiii u-dub uuuuu

bbbbbb bidbid bububu bucici ciucci cucici cui-ui diii-d dubdub ducici ibicui

bbbbbbb bicubic

bbbbbbbb i-ii-iii

bidi-bidi ddddddddd dub-i-dub

ubbi-dubbi

biddi-biddi

bbbbbbbbbbbbbbb ccccccccccccccc