a-a a-c a-t aaa aac aad aaf aak aat aau ac- aca acc acd acf ack act acu ad- ada adc add adf adk adt adu af- afa afc afd aff afk aft afu aka akc akd akk aku at- ata atc atd atf att atu au- aua auc aud auf auk aut c-- caa cac cad caf cak cat cau cca ccc ccd ccf cck cct ccu cda cdc cdd cdf cdk cdt cdu cfa cfc cfd cff cfk cft cfu cka ckc ckd ckt cta ctc ctd ctf ctk ctt ctu cua cuc cud cuf cuk cut cuu daa dac dad daf dak dat dau dca dcc dcd dcf dck dct dcu dda ddc ddd ddf ddk ddt ddu dfa dfc dfd dff dfk dft dfu dka dkc dkk dkt dku dta dtc dtd dtf dtk dtt dtu dua duc dud duf duk dut faa fac fad faf fak fat fau fca fcc fcd fcf fck fct fcu fda fdc fdd fdf fdk fdt fdu ffa ffc ffd fff ffk fft ffu fka fkc fkf fkk fkt fta ftc ftd ftf ftk ftt ftu fua fud fuf fuk fut fuu k-t ka- kaa kac kad kaf kak kat kau kca kcc kcd kck kct kcu kda kdc kdf kdk kdt kdu kfa kfc kfd kff kfu kkc kkk kkt kku kta ktc ktf ktk ktt ktu kuc kud kuk kut kuu taa tac tad taf tak tat tau tca tcc tcd tcf tck tct tcu tda tdc tdd tdf tdk tdt tdu tfa tfc tfd tff tfk tft tfu tka tkc tkk tkt tta ttc ttd ttf ttk ttt ttu tua tuc tud tuf tuk tut tuu ua- uaa uac uad uaf uak uat uau uca ucc ucd ucf uck uct ucu uda udc udd udf udk udt udu ufa ufc ufd uff uft ufu uka ukc ukf ukk uku uta utc utd utf utk utt utu uua uuc uut uuu