-up a-a a-b a-c aaa aab aac aae aan aao aap aas aau ab- aba abb abc abe abn abo abp abs abu ac- aca acb acc ace acn aco acp acs acu aea aeb aec aee aen aeo aep aes aeu an- ana anb anc ane ann ano anp ans anu aoa aob aoc aoe aon aoo aop aos aou ap- apa apb apc ape apn apo app aps apu as- asa asb asc ase asn aso asp ass asu au- aua aub auc aue aun auo aup aus b-p b-u baa bab bac bae ban bao bap bas bau bba bbb bbc bbe bbn bbo bbp bbs bbu bca bcb bcc bce bcn bco bcp bcs bcu be- bea beb bec bee ben beo bep bes beu bna bnb bnc bne bnn bno bnp bns bnu boa bob boc boe bon boo bop bos bou bpa bpb bpc bpe bpn bpo bpp bps bpu bsa bsb bsc bse bsn bso bsp bss bsu bua bub buc bue bun buo bup bus buu c-- caa cab cac cae can cao cap cas cau cba cbb cbc cbe cbn cbo cbp cbs cbu cca ccb ccc cce ccn cco ccp ccs ccu ce- cea ceb cec cee cen ceo cep ces ceu cn- cna cnb cnc cne cnn cno cnp cns cnu co- coa cob coc coe con coo cop cos cou cpa cpb cpc cpe cpn cpo cpp cps cpu csa csb csc cse csn cso csp css csu cua cub cuc cue cun cuo cup cus cuu eaa eab eac eae ean eao eap eas eau eba ebb ebc ebe ebn ebo ebp ebs ebu ec- eca ecb ecc ece ecn eco ecs ecu eea eeb eec eee een eeo eep ees en- ena enb enc ene enn eno enp ens enu eo- eoa eob eoc eoe eon eoo eop eos eou ep- epa epb epc epe epn epo epp eps epu es- esa esb esc ese esn eso esp ess esu eu- eua eub euc eue eun eup eus naa nab nac nae nan nao nap nas nau nba nbb nbc nbe nbn nbo nbp nbs nbu nca ncb ncc nce ncn nco ncp ncs ncu ne- nea neb nec nee nen neo nep nes neu nna nnb nnc nne nnn nno nnp nns nnu no- noa nob noc noe non noo nop nos nou npa npb npc npe npn npo npp nps npu nsa nsb nsc nse nsn nso nsp nss nsu nua nub nuc nue nun nuo nup nus nuu oaa oab oac oae oan oao oap oas oau ob- oba obb obc obe obn obo obp obs obu oc- oca ocb occ ocn oco ocp ocs ocu oea oeb oec oee oen oeo oep oes on- ona onb onc one onn ono onp ons onu oo- ooa oob ooc oon ooo oop oos op- opa opb opc ope opn opo opp ops os- osa osb osc ose osn oso osp oss osu ou- oua ouc oue oun ouo oup ous p-p paa pab pac pae pan pao pap pas pau pba pbb pbc pbe pbn pbo pbp pbs pbu pca pcb pcc pce pcn pco pcp pcs pcu pea peb pec pee pen peo pep pes peu pn- pna pnb pnc pne pnn pno pnp pns pnu poa pob poc poe pon poo pop pos pou ppa ppb ppc ppe ppn ppo ppp pps ppu ps- psa psb psc pse psn pso psp pss psu pua pub puc pue pun pup pus puu saa sab sac sae san sao sap sas sau sba sbb sbc sbe sbn sbo sbp sbs sbu sca scb scc sce scn sco scp scs scu se- sea seb sec see sen seo sep ses seu sna snb snc sne snn sno snp sns snu soa sob soc soe son soo sop sos sou spa spb spc spe spn spo spp sps spu ss- ssa ssb ssc sse ssn sso ssp sss ssu sua sub suc sue sun suo sup sus suu ua- uaa uab uac uae uan uao uap uas uau uba ubb ubc ube ubn ubo ubp ubs ubu uca ucb ucc uce ucn uco ucp ucs ucu uea ueb uec uee uen uep ues un- una unb unc une unn uno unp uns unu uoa uob uoc uoe uon uoo uop uos up- upa upb upc upe upn upo upp ups upu usa usb usc use usn uso usp uss usu uua uuc uue uun uus uuu