-up a-a a-b a-t aaa aab aak aan aao aap aar aat aau ab- aba abb abk abn abo abp abr abt abu aka akb akk akn ako akp akr aku an- ana anb ank ann ano anp anr ant anu aoa aob aok aon aoo aop aor aot aou ap- apa apb apk apn apo app apr apt apu ar- ara arb ark arn aro arp arr art aru at- ata atb atn ato atp atr att atu au- aua aub auk aun auo aup aur aut b-p b-u baa bab bak ban bao bap bar bat bau bba bbb bbk bbn bbo bbp bbr bbt bbu bka bkb bkk bkn bko bkp bkr bkt bna bnb bnk bnn bno bnp bnr bnt bnu boa bob bok bon boo bop bor bot bou bpa bpb bpn bpo bpp bpr bpt bpu bra brb brk brn bro brp brr brt bru bta btb btk btn bto btp btr btt btu bua bub buk bun buo bup bur but buu k-t ka- kaa kab kak kan kao kap kar kat kau kba kbb kbk kbn kbo kbp kbr kbu kkb kkk kkn kkp kkr kkt kku kn- kna knk knn kno knp knr knt knu koa kob kok kon koo kop kor kot kou kpa kpk kpn kpo kpp kpr kpt kpu kra krk krn kro krp krr krt kru kta ktb ktk ktn kto ktp ktr ktt ktu kub kuk kun kup kur kut kuu naa nab nak nan nao nap nar nat nau nba nbb nbk nbn nbo nbp nbr nbt nbu nka nkk nkn nko nkp nkr nkt nku nna nnb nnk nnn nno nnp nnt nnu no- noa nob nok non noo nop nor not nou npa npb npn npo npp npr npt npu nra nrb nrk nrn nro nrp nrr nrt nru nta ntb ntk ntn nto ntp ntr ntt ntu nua nub nuk nun nuo nup nur nut nuu oaa oab oak oan oao oap oar oat oau ob- oba obb obk obn obo obp obr obt obu oka okb okk oko okp okr oku on- ona onb onk onn ono onp onr ont onu oo- ooa oob ook oon ooo oop oor oot op- opa opb opk opn opo opp opr opt or- ora orb ork orn oro orp orr ort oru ot- ota otb otk otn oto otp otr ott otu ou- oua ouk oun ouo oup our out p-p paa pab pak pan pao pap par pat pau pba pbb pbk pbn pbo pbp pbr pbt pbu pka pkb pkn pko pkp pkr pkt pku pn- pna pnb pnk pnn pno pnp pnr pnt pnu poa pob pok pon poo pop por pot pou ppa ppb ppk ppn ppo ppp ppr ppt ppu pra prb prk prn pro prp prr prt pru pt- pta ptb ptk ptn pto ptp ptr ptt ptu pua pub puk pun pup pur put puu ra- raa rab rak ran rao rap rar rat rau rba rbb rbk rbn rbo rbp rbr rbt rbu rkb rkk rko rkp rkt rku rna rnb rnn rno rnp rnr rnt rnu roa rob rok ron roo rop ror rot rou rpa rpb rpk rpn rpo rpp rpr rpt rpu rra rrb rrk rrn rrp rrr rrt rru rta rtb rtk rtn rto rtp rtr rtt rtu rua rub ruk run ruo rup rur rut ruu taa tab tak tan tao tap tar tat tau tba tbb tbk tbn tbo tbp tbr tbt tbu tka tkb tkk tko tkp tkr tkt tna tnb tnk tnn tno tnp tnr tnt to- toa tob tok ton too top tor tot tou tpa tpb tpk tpn tpo tpp tpr tpt tpu tra trb trk trn tro trp trr trt tru tta ttb ttk ttn tto ttp ttr ttt ttu tua tub tuk tun tuo tup tur tut tuu ua- uaa uab uak uan uao uap uar uat uau uba ubb ubk ubn ubo ubp ubr ubt ubu uka ukb ukk ukn ukp ukr uku un- una unb unk unn uno unp unr unt unu uoa uob uok uon uoo uop uor uot up- upa upb upk upn upo upp upr upt upu ur- ura urb urk urn uro urp urr urt uru uta utb utk utn uto utp utr utt utu uua uun uur uut uuu