-up a-a a-b a-t aaa aab aae aao aap aas aat aau ab- aba abb abe abo abp abs abt abu aea aeb aee aeo aep aes aet aeu aoa aob aoe aoo aop aos aot aou ap- apa apb ape apo app aps apt apu as- asa asb ase aso asp ass ast asu at- ata atb ate ato atp ats att atu au- aua aub aue auo aup aus aut b-p b-u baa bab bae bao bap bas bat bau bba bbb bbe bbo bbp bbs bbt bbu be- bea beb bee beo bep bes bet beu boa bob boe boo bop bos bot bou bpa bpb bpe bpo bpp bps bpt bpu bsa bsb bse bso bsp bss bst bsu bta btb bte bto btp bts btt btu bua bub bue buo bup bus but buu eaa eab eae eao eap eas eat eau eba ebb ebe ebo ebp ebs ebt ebu eea eeb eee eeo eep ees eet eo- eoa eob eoe eoo eop eos eot eou ep- epa epb epe epo epp eps ept epu es- esa esb ese eso esp ess est esu eta etb ete eto etp ets ett etu eu- eua eub eue eup eus eut oaa oab oae oao oap oas oat oau ob- oba obb obe obo obp obs obt obu oea oeb oee oeo oep oes oet oo- ooa oob ooo oop oos oot op- opa opb ope opo opp ops opt os- osa osb ose oso osp oss ost osu ot- ota otb ote oto otp ots ott otu ou- oua oue ouo oup ous out p-p paa pab pae pao pap pas pat pau pba pbb pbe pbo pbp pbs pbt pbu pea peb pee peo pep pes pet peu poa pob poe poo pop pos pot pou ppa ppb ppe ppo ppp pps ppt ppu ps- psa psb pse pso psp pss pst psu pt- pta ptb pte pto ptp pts ptt ptu pua pub pue pup pus put puu saa sab sae sao sap sas sat sau sba sbb sbe sbo sbp sbs sbt sbu se- sea seb see seo sep ses set seu soa sob soe soo sop sos sot sou spa spb spe spo spp sps spt spu ss- ssa ssb sse sso ssp sss sst ssu sta stb ste sto stp sts stt stu sua sub sue suo sup sus sut suu taa tab tae tao tap tas tat tau tba tbb tbe tbo tbp tbs tbt tbu te- tea teb tee teo tep tes tet teu to- toa tob toe too top tos tot tou tpa tpb tpe tpo tpp tps tpt tpu tsa tsb tse tso tsp tss tst tsu tta ttb tte tto ttp tts ttt ttu tua tub tue tuo tup tus tut tuu ua- uaa uab uae uao uap uas uat uau uba ubb ube ubo ubp ubs ubt ubu uea ueb uee uep ues uet uoa uob uoe uoo uop uos uot up- upa upb upe upo upp ups upt upu usa usb use uso usp uss ust usu uta utb ute uto utp uts utt utu uua uue uus uut uuu