-up a-a a-b aaa aab aak aan aao aap aar aau ab- aba abb abk abn abo abp abr abu aka akb akk akn ako akp akr aku an- ana anb ank ann ano anp anr anu aoa aob aok aon aoo aop aor aou ap- apa apb apk apn apo app apr apu ar- ara arb ark arn aro arp arr aru au- aua aub auk aun auo aup aur b-p b-u baa bab bak ban bao bap bar bau bba bbb bbk bbn bbo bbp bbr bbu bka bkb bkk bkn bko bkp bkr bna bnb bnk bnn bno bnp bnr bnu boa bob bok bon boo bop bor bou bpa bpb bpn bpo bpp bpr bpu bra brb brk brn bro brp brr bru bua bub buk bun buo bup bur buu ka- kaa kab kak kan kao kap kar kau kba kbb kbk kbn kbo kbp kbr kbu kkb kkk kkn kkp kkr kku kn- kna knk knn kno knp knr knu koa kob kok kon koo kop kor kou kpa kpk kpn kpo kpp kpr kpu kra krk krn kro krp krr kru kub kuk kun kup kur kuu naa nab nak nan nao nap nar nau nba nbb nbk nbn nbo nbp nbr nbu nka nkk nkn nko nkp nkr nku nna nnb nnk nnn nno nnp nnu no- noa nob nok non noo nop nor nou npa npb npn npo npp npr npu nra nrb nrk nrn nro nrp nrr nru nua nub nuk nun nuo nup nur nuu oaa oab oak oan oao oap oar oau ob- oba obb obk obn obo obp obr obu oka okb okk oko okp okr oku on- ona onb onk onn ono onp onr onu oo- ooa oob ook oon ooo oop oor op- opa opb opk opn opo opp opr or- ora orb ork orn oro orp orr oru ou- oua ouk oun ouo oup our p-p paa pab pak pan pao pap par pau pba pbb pbk pbn pbo pbp pbr pbu pka pkb pkn pko pkp pkr pku pn- pna pnb pnk pnn pno pnp pnr pnu poa pob pok pon poo pop por pou ppa ppb ppk ppn ppo ppp ppr ppu pra prb prk prn pro prp prr pru pua pub puk pun pup pur puu ra- raa rab rak ran rao rap rar rau rba rbb rbk rbn rbo rbp rbr rbu rkb rkk rko rkp rku rna rnb rnn rno rnp rnr rnu roa rob rok ron roo rop ror rou rpa rpb rpk rpn rpo rpp rpr rpu rra rrb rrk rrn rrp rrr rru rua rub ruk run ruo rup rur ruu ua- uaa uab uak uan uao uap uar uau uba ubb ubk ubn ubo ubp ubr ubu uka ukb ukk ukn ukp ukr uku un- una unb unk unn uno unp unr unu uoa uob uok uon uoo uop uor up- upa upb upk upn upo upp upr upu ur- ura urb urk urn uro urp urr uru uua uun uur uuu