-er -ic -up a-a a-b a-c a-i aaa aab aac aae aai aan aap aar aas aau ab- aba abb abc abe abi abn abp abr abs abu ac- aca acb acc ace aci acn acp acr acs acu aea aeb aec aee aei aen aep aer aes aeu ai- aia aib aic aie aii ain aip air ais aiu an- ana anb anc ane ani ann anp anr ans anu ap- apa apb apc ape api apn app apr aps apu ar- ara arb arc are ari arn arp arr ars aru as- asa asb asc ase asi asn asp asr ass asu au- aua aub auc aue aui aun aup aur aus b-p b-u baa bab bac bae bai ban bap bar bas bau bba bbb bbc bbe bbi bbn bbp bbr bbs bbu bca bcb bcc bce bci bcn bcp bcr bcs bcu be- bea beb bec bee bei ben bep ber bes beu bi- bia bib bic bie bii bin bip bir bis biu bna bnb bnc bne bni bnn bnp bnr bns bnu bpa bpb bpc bpe bpi bpn bpp bpr bps bpu bra brb bre bri brn brp brr brs bru bsa bsb bsc bse bsi bsn bsp bsr bss bsu bua bub buc bue bui bun bup bur bus buu c-- caa cab cac cae cai can cap car cas cau cba cbb cbc cbe cbi cbn cbp cbr cbs cbu cca ccb ccc cce cci ccn ccp ccr ccs ccu ce- cea ceb cec cee cei cen cep cer ces ceu ci- cia cib cic cie cii cin cip cir cis ciu cn- cna cnb cnc cne cni cnn cnp cnr cns cnu cpa cpb cpc cpe cpi cpn cpp cpr cps cpu cra crb crc cre cri crn crp crr crs cru csa csb csc cse csi csn csp csr css csu cua cub cuc cue cui cun cup cur cus cuu eaa eab eac eae eai ean eap ear eas eau eba ebb ebc ebe ebi ebn ebp ebr ebs ebu ec- eca ecb ecc ece eci ecn ecr ecs ecu eea eeb eec eee een eep eer ees eia eib eic eie eii ein eip eir eis eiu en- ena enb enc ene eni enn enp enr ens enu ep- epa epb epc epe epi epn epp epr eps epu era erb erc ere eri ern erp err ers eru es- esa esb esc ese esi esn esp esr ess esu eu- eua eub euc eue eui eun eup eur eus ia- iaa iab iac iae iai ian iap iar ias iau iba ibb ibc ibe ibi ibn ibp ibr ibs ibu ica icb icc ice ici icn icp icr ics icu ie- iea iec iee iei ien iep ier ies iia iib iic iie iii iin iip iir iis iiu in- ina inb inc ine ini inn inp inr ins inu ipa ipb ipc ipe ipi ipn ipp ipr ips ipu ir- ira irb irc ire iri irn irp irr irs iru is- isa isb isc ise isi isn isp isr iss isu iu- iua iub iuc iue iui iup iur ius n-i naa nab nac nae nai nan nap nar nas nau nba nbb nbc nbe nbi nbn nbp nbr nbs nbu nca ncb ncc nce nci ncn ncp ncr ncs ncu ne- nea neb nec nee nei nen nep ner nes neu nia nib nic nie nii nin nip nir nis niu nna nnb nnc nne nni nnn nnp nns nnu npa npb npc npe npi npn npp npr nps npu nra nrb nrc nre nri nrn nrp nrr nrs nru nsa nsb nsc nse nsi nsn nsp nsr nss nsu nua nub nuc nue nui nun nup nur nus nuu p-p paa pab pac pae pai pan pap par pas pau pba pbb pbc pbe pbi pbn pbp pbr pbs pbu pca pcb pcc pce pci pcn pcp pcr pcs pcu pea peb pec pee pei pen pep per pes peu pia pib pic pie pii pin pip pir pis piu pn- pna pnb pnc pne pni pnn pnp pnr pns pnu ppa ppb ppc ppe ppi ppn ppp ppr pps ppu pra prb prc pre pri prn prp prr prs pru ps- psa psb psc pse psi psn psp psr pss psu pua pub puc pue pui pun pup pur pus puu ra- raa rab rac rae rai ran rap rar ras rau rba rbb rbc rbe rbi rbn rbp rbr rbs rbu rca rcb rcc rce rci rcn rcp rcr rcs rcu re- rea reb rec ree rei ren rep rer res reu ria rib ric rie rii rin rip rir ris rna rnb rnc rni rnn rnp rnr rns rnu rpa rpb rpc rpe rpi rpn rpp rpr rps rpu rra rrb rrc rri rrn rrp rrr rrs rru rsa rsb rsc rse rsi rsn rsp rsr rss rsu rua rub ruc rue rui run rup rur rus ruu saa sab sac sae sai san sap sar sas sau sba sbb sbc sbe sbi sbn sbp sbr sbs sbu sca scb scc sce sci scn scp scr scs scu se- sea seb sec see sei sen sep ser ses seu sia sib sic sie sii sin sip sir sis siu sna snb snc sne sni snn snp snr sns snu spa spb spc spe spi spn spp spr sps spu sr- sra srb src sre sri srn srp srr srs ss- ssa ssb ssc sse ssi ssn ssp ssr sss ssu sua sub suc sue sui sun sup sur sus suu ua- uaa uab uac uae uai uan uap uar uas uau uba ubb ubc ube ubi ubn ubp ubr ubs ubu uca ucb ucc uce uci ucn ucp ucr ucs ucu uea ueb uec uee uei uen uep uer ues uia uib uic uie uii uin uip uir uis uiu un- una unb unc une uni unn unp unr uns unu up- upa upb upc upe upi upn upp upr ups