-ic a-a a-b a-c a-i a-t aaa aab aac aad aae aai aat aau ab- aba abb abc abd abe abi abt abu ac- aca acb acc acd ace aci act acu ad- ada adb adc add ade adi adt adu aea aeb aec aed aee aei aet aeu ai- aia aib aic aid aie aii ait aiu at- ata atb atc atd ate ati att atu au- aua aub auc aud aue aui aut b-u baa bab bac bad bae bai bat bau bba bbb bbc bbd bbe bbi bbt bbu bca bcb bcc bcd bce bci bct bcu bda bdb bdc bdd bde bdi bdt bdu be- bea beb bec bed bee bei bet beu bi- bia bib bic bid bie bii bit biu bta btb btc btd bte bti btt btu bua bub buc bud bue bui but buu c-- caa cab cac cad cae cai cat cau cba cbb cbc cbd cbe cbi cbt cbu cca ccb ccc ccd cce cci cct ccu cda cdb cdc cdd cde cdi cdt cdu ce- cea ceb cec ced cee cei cet ceu ci- cia cib cic cid cie cii cit ciu cta ctb ctc ctd cte cti ctt ctu cua cub cuc cud cue cui cut cuu daa dab dac dad dae dai dat dau dba dbb dbc dbd dbe dbi dbt dbu dca dcb dcc dcd dce dci dct dcu dda ddb ddc ddd dde ddi ddt ddu de- dea deb dec ded dee dei det deu di- dia dib dic did die dii dit diu dta dtb dtc dtd dte dti dtt dtu dua dub duc dud due dui dut eaa eab eac ead eae eai eat eau eba ebb ebc ebd ebe ebi ebt ebu ec- eca ecb ecc ecd ece eci ect ecu ed- eda edb edc edd ede edi edt edu eea eeb eec eed eee eet eia eib eic eid eie eii eit eiu eta etb etc etd ete eti ett etu eu- eua eub euc eud eue eui eut i-d ia- iaa iab iac iad iae iai iat iau iba ibb ibc ibd ibe ibi ibt ibu ica icb icc icd ice ici ict icu ida idb idc idd ide idi idt idu ie- iea iec ied iee iei iet iia iib iic iid iie iii iit iiu ita itb itc itd ite iti itt itu iu- iua iub iuc iud iue iui iut taa tab tac tad tae tai tat tau tba tbb tbc tbd tbe tbi tbt tbu tca tcb tcc tcd tce tci tct tcu tda tdb tdc tdd tde tdi tdt tdu te- tea teb tec ted tee tei tet teu tia tib tic tid tie tii tit tiu tta ttb ttc ttd tte tti ttt ttu tua tub tuc tud tue tui tut tuu ua- uaa uab uac uad uae uai uat uau uba ubb ubc ube ubi ubt ubu uca ucb ucc ucd uce uci uct ucu uda udb udc udd ude udi udt udu uea ueb uec ued uee uei uet uia uib uic uid uie uii uit uiu uta utb utc utd ute uti utt utu uua uuc uue uut uuu