-up a-a a-b a-t aaa aab aan aao aap aas aat aau ab- aba abb abn abo abp abs abt abu an- ana anb ann ano anp ans ant anu aoa aob aon aoo aop aos aot aou ap- apa apb apn apo app aps apt apu as- asa asb asn aso asp ass ast asu at- ata atb atn ato atp ats att atu au- aua aub aun auo aup aus aut b-p b-u baa bab ban bao bap bas bat bau bba bbb bbn bbo bbp bbs bbt bbu bna bnb bnn bno bnp bns bnt bnu boa bob bon boo bop bos bot bou bpa bpb bpn bpo bpp bps bpt bpu bsa bsb bsn bso bsp bss bst bsu bta btb btn bto btp bts btt btu bua bub bun buo bup bus but buu naa nab nan nao nap nas nat nau nba nbb nbn nbo nbp nbs nbt nbu nna nnb nnn nno nnp nns nnt nnu no- noa nob non noo nop nos not nou npa npb npn npo npp nps npt npu nsa nsb nsn nso nsp nss nst nsu nta ntb ntn nto ntp nts ntt ntu nua nub nun nuo nup nus nut nuu oaa oab oan oao oap oas oat oau ob- oba obb obn obo obp obs obt obu on- ona onb onn ono onp ons ont onu oo- ooa oob oon ooo oop oos oot op- opa opb opn opo opp ops opt os- osa osb osn oso osp oss ost osu ot- ota otb otn oto otp ots ott otu ou- oua oun ouo oup ous out p-p paa pab pan pao pap pas pat pau pba pbb pbn pbo pbp pbs pbt pbu pn- pna pnb pnn pno pnp pns pnt pnu poa pob pon poo pop pos pot pou ppa ppb ppn ppo ppp pps ppt ppu ps- psa psb psn pso psp pss pst psu pt- pta ptb ptn pto ptp pts ptt ptu pua pub pun pup pus put puu saa sab san sao sap sas sat sau sba sbb sbn sbo sbp sbs sbt sbu sna snb snn sno snp sns snt snu soa sob son soo sop sos sot sou spa spb spn spo spp sps spt spu ss- ssa ssb ssn sso ssp sss sst ssu sta stb stn sto stp sts stt stu sua sub sun suo sup sus sut suu taa tab tan tao tap tas tat tau tba tbb tbn tbo tbp tbs tbt tbu tna tnb tnn tno tnp tns tnt to- toa tob ton too top tos tot tou tpa tpb tpn tpo tpp tps tpt tpu tsa tsb tsn tso tsp tss tst tsu tta ttb ttn tto ttp tts ttt ttu tua tub tun tuo tup tus tut tuu ua- uaa uab uan uao uap uas uat uau uba ubb ubn ubo ubp ubs ubt ubu un- una unb unn uno unp uns unt unu uoa uob uon uoo uop uos uot up- upa upb upn upo upp ups upt upu usa usb usn uso usp uss ust usu uta utb utn uto utp uts utt utu uua uun uus uut uuu