-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aan aao aar aas aat aau ab- aba abb abc abe abi abn abo abr abs abt abu ac- aca acb acc ace aci acn aco acr acs act acu aea aeb aec aee aei aen aeo aer aes aet aeu ai- aia aib aic aie aii ain aio air ais ait aiu an- ana anb anc ane ani ann ano anr ans ant anu aoa aob aoc aoe aoi aon aoo aor aos aot aou ar- ara arb arc are ari arn aro arr ars art aru as- asa asb asc ase asi asn aso asr ass ast asu at- ata atb atc ate ati atn ato atr ats att atu au- aua aub auc aue aui aun auo aur aus aut b-u baa bab bac bae bai ban bao bar bas bat bau bba bbb bbc bbe bbi bbn bbo bbr bbs bbt bbu bca bcb bcc bce bci bcn bco bcr bcs bct bcu be- bea beb bec bee bei ben beo ber bes bet beu bi- bia bib bic bie bii bin bio bir bis bit biu bna bnb bnc bne bni bnn bno bnr bns bnt bnu boa bob boc boe boi bon boo bor bos bot bou bra brb bre bri brn bro brr brs brt bru bsa bsb bsc bse bsi bsn bso bsr bss bst bsu bta btb btc bte bti btn bto btr bts btt btu bua bub buc bue bui bun buo bur bus but buu c-- caa cab cac cae cai can cao car cas cat cau cba cbb cbc cbe cbi cbn cbo cbr cbs cbt cbu cca ccb ccc cce cci ccn cco ccr ccs cct ccu ce- cea ceb cec cee cei cen ceo cer ces cet ceu ci- cia cib cic cie cii cin cio cir cis cit ciu cn- cna cnb cnc cne cni cnn cno cnr cns cnt cnu co- coa cob coc coe coi con coo cor cos cot cou cra crb crc cre cri crn cro crr crs crt cru csa csb csc cse csi csn cso csr css cst csu cta ctb ctc cte cti ctn cto ctr cts ctt ctu cua cub cuc cue cui cun cuo cur cus cut cuu eaa eab eac eae eai ean eao ear eas eat eau eba ebb ebc ebe ebi ebn ebo ebr ebs ebt ebu ec- eca ecb ecc ece eci ecn eco ecr ecs ect ecu eea eeb eec eee een eeo eer ees eet eia eib eic eie eii ein eio eir eis eit eiu en- ena enb enc ene eni enn eno enr ens ent enu eo- eoa eob eoc eoe eoi eon eoo eor eos eot eou era erb erc ere eri ern ero err ers ert eru es- esa esb esc ese esi esn eso esr ess est esu eta etb etc ete eti etn eto etr ets ett etu eu- eua eub euc eue eui eun eur eus eut ia- iaa iab iac iae iai ian iao iar ias iat iau iba ibb ibc ibe ibi ibn ibo ibr ibs ibt ibu ica icb icc ice ici icn ico icr ics ict icu ie- iea iec iee iei ien ier ies iet iia iib iic iie iii iin iio iir iis iit iiu in- ina inb inc ine ini inn ino inr ins int inu io- ioa iob ioc ioe ioi ion ioo ior ios iot iou ir- ira irb irc ire iri irn iro irr irs irt iru is- isa isb isc ise isi isn iso isr iss ist isu ita itb itc ite iti itn ito its itt itu iu- iua iub iuc iue iui iur ius iut n-i naa nab nac nae nai nan nao nar nas nat nau nba nbb nbc nbe nbi nbn nbo nbr nbs nbt nbu nca ncb ncc nce nci ncn nco ncr ncs nct ncu ne- nea neb nec nee nei nen neo ner nes net neu nia nib nic nie nii nin nio nir nis nit niu nna nnb nnc nne nni nnn nno nns nnt nnu no- noa nob noc noe noi non noo nor nos not nou nra nrb nrc nre nri nrn nro nrr nrs nrt nru nsa nsb nsc nse nsi nsn nso nsr nss nst nsu nta ntb ntc nte nti ntn nto ntr nts ntt ntu nua nub nuc nue nui nun nuo nur nus nut nuu o-i oaa oab oac oae oai oan oao oar oas oat oau ob- oba obb obc obe obi obn obo obr obs obt obu oc- oca ocb occ oci ocn oco ocr ocs oct ocu oea oeb oec oee oei oen oeo oer oes oet oia oib oic oie oii oin oio oir ois oit oiu on- ona onb onc one oni onn ono onr ons ont onu oo- ooa oob ooc ooi oon ooo oor oos oot or- ora orb orc ore ori orn oro orr ors ort oru os- osa osb osc ose osi osn oso osr oss ost osu ot- ota otb otc ote oti otn oto otr ots ott otu ou- oua ouc oue oui oun ouo our ous out ra- raa rab rac rae rai ran rao rar ras rat rau rba rbb rbc rbe rbi rbn rbo rbr rbs rbt rbu rca rcb rcc rce rci rcn rco rcr rcs rct rcu re- rea reb rec ree rei ren reo rer res ret reu ria rib ric rie rii rin rio rir ris rit rna rnb rnc rni rnn rno rnr rns rnt rnu roa rob roc roe roi ron roo ror ros rot rou rra rrb rrc rri rrn rrr rrs rrt rru rsa rsb rsc rse rsi rsn rso rsr rss rst rsu rta rtb rtc rte rti rtn rto rtr rts rtt rtu rua rub ruc rue rui run ruo rur rus rut ruu saa sab sac sae sai san sao