-ic a-a a-b a-c a-i aaa aab aac aad aae aai aan aas aau ab- aba abb abc abd abe abi abn abs abu ac- aca acb acc acd ace aci acn acs acu ad- ada adb adc add ade adi adn ads adu aea aeb aec aed aee aei aen aes aeu ai- aia aib aic aid aie aii ain ais aiu an- ana anb anc and ane ani ann ans anu as- asa asb asc asd ase asi asn ass asu au- aua aub auc aud aue aui aun aus b-u baa bab bac bad bae bai ban bas bau bba bbb bbc bbd bbe bbi bbn bbs bbu bca bcb bcc bcd bce bci bcn bcs bcu bda bdb bdc bdd bde bdi bds bdu be- bea beb bec bed bee bei ben bes beu bi- bia bib bic bid bie bii bin bis biu bna bnb bnc bnd bne bni bnn bns bnu bsa bsb bsc bsd bse bsi bsn bss bsu bua bub buc bud bue bui bun bus buu c-- caa cab cac cad cae cai can cas cau cba cbb cbc cbd cbe cbi cbn cbs cbu cca ccb ccc ccd cce cci ccn ccs ccu cda cdb cdc cdd cde cdi cdn cds cdu ce- cea ceb cec ced cee cei cen ces ceu ci- cia cib cic cid cie cii cin cis ciu cn- cna cnb cnc cnd cne cni cnn cns cnu csa csb csc csd cse csi csn css csu cua cub cuc cud cue cui cun cus cuu daa dab dac dad dae dai dan das dau dba dbb dbc dbd dbe dbi dbn dbs dbu dca dcb dcc dcd dce dci dcn dcs dcu dda ddb ddc ddd dde ddi ddn dds ddu de- dea deb dec ded dee dei den des deu di- dia dib dic did die dii din dis diu dna dnb dnc dnd dne dni dnn dns dsa dsb dsc dsd dse dsi dsn dss dsu dua dub duc dud due dui dun dus eaa eab eac ead eae eai ean eas eau eba ebb ebc ebd ebe ebi ebn ebs ebu ec- eca ecb ecc ecd ece eci ecn ecs ecu ed- eda edb edc edd ede edi edn eds edu eea eeb eec eed eee een ees eia eib eic eid eie eii ein eis eiu en- ena enb enc end ene eni enn ens enu es- esa esb esc esd ese esi esn ess esu eu- eua eub euc eud eue eui eun eus i-d ia- iaa iab iac iad iae iai ian ias iau iba ibb ibc ibd ibe ibi ibn ibs ibu ica icb icc icd ice ici icn ics icu ida idb idc idd ide idi idn ids idu ie- iea iec ied iee iei ien ies iia iib iic iid iie iii iin iis iiu in- ina inb inc ind ine ini inn ins inu is- isa isb isc isd ise isi isn iss isu iu- iua iub iuc iud iue iui ius n-i naa nab nac nad nae nai nan nas nau nba nbb nbc nbd nbe nbi nbn nbs nbu nca ncb ncc ncd nce nci ncn ncs ncu nda ndb ndc ndd nde ndi ndn nds ndu ne- nea neb nec ned nee nei nen nes neu nia nib nic nid nie nii nin nis niu nna nnb nnc nne nni nnn nns nnu nsa nsb nsc nsd nse nsi nsn nss nsu nua nub nuc nud nue nui nun nus nuu saa sab sac sad sae sai san sas sau sba sbb sbc sbd sbe sbi sbn sbs sbu sca scb scc scd sce sci scn scs scu sda sdb sdc sdd sde sdi sdn sds sdu se- sea seb sec sed see sei sen ses seu sia sib sic sid sie sii sin sis siu sna snb snc snd sne sni snn sns snu ss- ssa ssb ssc ssd sse ssi ssn sss ssu sua sub suc sud sue sui sun sus suu ua- uaa uab uac uad uae uai uan uas uau uba ubb ubc ube ubi ubn ubs ubu uca ucb ucc ucd uce uci ucn ucs ucu uda udb udc udd ude udi udn uds udu uea ueb uec ued uee uei uen ues uia uib uic uid uie uii uin uis uiu un- una unb unc und une uni unn uns unu usa usb usc usd use usi usn uss usu uua uuc uue uun uus uuu