-th a-a a-b a-c a-t aaa aab aac aad aae aah aak aat aau ab- aba abb abc abd abe abh abk abt abu ac- aca acb acc acd ace ach ack act acu ad- ada adb adc add ade adh adk adt adu aea aeb aec aed aee aeh aek aet aeu aha ahb ahc ahd ahe ahh ahk aht ahu aka akb akc akd ake akh akk aku at- ata atb atc atd ate ath att atu au- aua aub auc aud aue auh auk aut b-u baa bab bac bad bae bah bak bat bau bba bbb bbc bbd bbe bbh bbk bbt bbu bca bcb bcc bcd bce bch bck bct bcu bda bdb bdc bdd bde bdh bdk bdt bdu be- bea beb bec bed bee beh bek bet beu bha bhb bhc bhd bhe bhh bhk bht bhu bka bkb bkc bke bkk bkt bta btb btc btd bte bth btk btt btu bua bub buc bud bue buh buk but buu c-- caa cab cac cad cae cah cak cat cau cba cbb cbc cbd cbe cbh cbk cbt cbu cca ccb ccc ccd cce cch cck cct ccu cda cdb cdc cdd cde cdh cdk cdt cdu ce- cea ceb cec ced cee ceh cek cet ceu ch- cha chb chc chd che chh chk cht chu cka ckb ckc ckd ckh ckt cta ctb ctc ctd cte cth ctk ctt ctu cua cub cuc cud cue cuh cuk cut cuu daa dab dac dad dae dah dak dat dau dba dbb dbc dbd dbe dbh dbk dbt dbu dca dcb dcc dcd dce dck dct dcu dda ddb ddc ddd dde ddh ddk ddt ddu de- dea deb dec ded dee deh dek det deu dh- dha dhb dhc dhd dhe dhh dhk dht dhu dka dkb dkc dke dkk dkt dku dta dtb dtc dtd dte dth dtk dtt dtu dua dub duc dud due duh duk dut eaa eab eac ead eae eah eak eat eau eba ebb ebc ebd ebe ebh ebk ebt ebu ec- eca ecb ecc ecd ece ech eck ect ecu ed- eda edb edc edd ede edh edk edt edu eea eeb eec eed eee eek eet eha ehb ehc ehd ehe ehh eht ehu eka ekb ekc ekd eke ekh ekt eku eta etb etc etd ete eth etk ett etu eu- eua eub euc eud eue eut haa hab hac had hae hah hak hat hau hba hbb hbc hbd hbe hbh hbk hbt hbu hca hcb hcc hcd hce hch hck hct hda hdb hdc hdd hde hdh hdk hdt hdu he- hea heb hec hed hee heh hek het heu hha hhb hhc hhd hhe hhh hhk hht hhu hka hkb hkd hkh hkk hkt hku hta htb htc htd hte hth htk htt hua hub huc hud hue huh huk hut huu k-t ka- kaa kab kac kad kae kah kak kat kau kba kbb kbc kbd kbe kbh kbk kbu kca kcb kcc kcd kce kch kck kct kcu kda kdb kdc kde kdh kdk kdt kdu ke- kea keb kec ked kee keh kek ket kha khe khh khk khu kkb kkc kke kkh kkk kkt kku kta ktb ktc kte kth ktk ktt ktu kub kuc kud kue kuh kuk kut kuu taa tab tac tad tae tah tak tat tau tba tbb tbc tbd tbe tbh tbk tbt tbu tca tcb tcc tcd tce tch tck tct tcu tda tdb tdc tdd tde tdh tdk tdt tdu te- tea teb tec ted tee teh tek tet teu th- tha thb thc thd the thh thk tht thu tka tkb tkc tke tkk tkt tta ttb ttc ttd tte tth ttk ttt ttu tua tub tuc tud tue tuh tuk tut tuu ua- uaa uab uac uad uae uah uak uat uau uba ubb ubc ube ubh ubk ubt ubu uca ucb ucc ucd uce uch uck uct ucu uda udb udc udd ude udk udt udu uea ueb uec ued uee ueh uet uha uhb uhc uhd uhe uhh uht uhu uka ukb ukc uke ukk uku uta utb utc utd ute uth utk utt utu uua uuc uue uut uuu