-up a-a a-b a-t aaa aab aad aao aap aat aau ab- aba abb abd abo abp abt abu ad- ada adb add ado adp adt adu aoa aob aod aoo aop aot aou ap- apa apb apd apo app apt apu at- ata atb atd ato atp att atu au- aua aub aud auo aup aut b-p b-u baa bab bad bao bap bat bau bba bbb bbd bbo bbp bbt bbu bda bdb bdd bdo bdp bdt bdu boa bob bod boo bop bot bou bpa bpb bpd bpo bpp bpt bpu bta btb btd bto btp btt btu bua bub bud buo bup but buu daa dab dad dao dap dat dau dba dbb dbd dbo dbp dbt dbu dda ddb ddd ddo ddp ddt ddu doa dob dod doo dop dot dou dpa dpb dpd dpo dpp dpt dpu dta dtb dtd dto dtp dtt dtu dua dub dud duo dup dut oaa oab oad oao oap oat oau ob- oba obb obd obo obp obt obu oda odb odd odo odp odt odu oo- ooa oob ood ooo oop oot op- opa opb opd opo opp opt ot- ota otb otd oto otp ott otu ou- oua oud ouo oup out p-p paa pab pad pao pap pat pau pba pbb pbd pbo pbp pbt pbu pda pdb pdd pdo pdp pdt pdu poa pob pod poo pop pot pou ppa ppb ppd ppo ppp ppt ppu pt- pta ptb ptd pto ptp ptt ptu pua pub pud pup put puu taa tab tad tao tap tat tau tba tbb tbd tbo tbp tbt tbu tda tdb tdd tdo tdp tdt tdu to- toa tob tod too top tot tou tpa tpb tpd tpo tpp tpt tpu tta ttb ttd tto ttp ttt ttu tua tub tud tuo tup tut tuu ua- uaa uab uad uao uap uat uau uba ubb ubo ubp ubt ubu uda udb udd udo udp udt udu uoa uob uod uoo uop uot up- upa upb upd upo upp upt upu uta utb utd uto utp utt utu uua uut uuu