-up a-a a-b aaa aab aan aao aap aar aau ab- aba abb abn abo abp abr abu an- ana anb ann ano anp anr anu aoa aob aon aoo aop aor aou ap- apa apb apn apo app apr apu ar- ara arb arn aro arp arr aru au- aua aub aun auo aup aur b-p b-u baa bab ban bao bap bar bau bba bbb bbn bbo bbp bbr bbu bna bnb bnn bno bnp bnr bnu boa bob bon boo bop bor bou bpa bpb bpn bpo bpp bpr bpu bra brb brn bro brp brr bru bua bub bun buo bup bur buu naa nab nan nao nap nar nau nba nbb nbn nbo nbp nbr nbu nna nnb nnn nno nnp nnu no- noa nob non noo nop nor nou npa npb npn npo npp npr npu nra nrb nrn nro nrp nrr nru nua nub nun nuo nup nur nuu oaa oab oan oao oap oar oau ob- oba obb obn obo obp obr obu on- ona onb onn ono onp onr onu oo- ooa oob oon ooo oop oor op- opa opb opn opo opp opr or- ora orb orn oro orp orr oru ou- oua oun ouo oup our p-p paa pab pan pao pap par pau pba pbb pbn pbo pbp pbr pbu pn- pna pnb pnn pno pnp pnr pnu poa pob pon poo pop por pou ppa ppb ppn ppo ppp ppr ppu pra prb prn pro prp prr pru pua pub pun pup pur puu ra- raa rab ran rao rap rar rau rba rbb rbn rbo rbp rbr rbu rna rnb rnn rno rnp rnr rnu roa rob ron roo rop ror rou rpa rpb rpn rpo rpp rpr rpu rra rrb rrn rrp rrr rru rua rub run ruo rup rur ruu ua- uaa uab uan uao uap uar uau uba ubb ubn ubo ubp ubr ubu un- una unb unn uno unp unr unu uoa uob uon uoo uop uor up- upa upb upn upo upp upr upu ur- ura urb urn uro urp urr uru uua uun uur uuu